diff --git a/exercises/10_modules/modules1.rs b/exercises/10_modules/modules1.rs
index d97ab23a..81981dfc 100644
--- a/exercises/10_modules/modules1.rs
+++ b/exercises/10_modules/modules1.rs
@@ -5,7 +5,7 @@ mod sausage_factory {
         String::from("Ginger")
     }
 
-    fn make_sausage() {
+    pub fn make_sausage() {
         get_secret_recipe();
         println!("sausage!");
     }
diff --git a/exercises/10_modules/modules2.rs b/exercises/10_modules/modules2.rs
index 02eb80a9..56e1402a 100644
--- a/exercises/10_modules/modules2.rs
+++ b/exercises/10_modules/modules2.rs
@@ -4,8 +4,8 @@
 #[allow(dead_code)]
 mod delicious_snacks {
     // TODO: Add the following two `use` statements after fixing them.
-    // use self::fruits::PEAR as ???;
-    // use self::veggies::CUCUMBER as ???;
+    pub use self::fruits::PEAR as fruit;
+    pub use self::veggies::CUCUMBER as veggie;
 
     mod fruits {
         pub const PEAR: &str = "Pear";
diff --git a/exercises/10_modules/modules3.rs b/exercises/10_modules/modules3.rs
index 691608d2..403b7ea1 100644
--- a/exercises/10_modules/modules3.rs
+++ b/exercises/10_modules/modules3.rs
@@ -3,7 +3,7 @@
 
 // TODO: Bring `SystemTime` and `UNIX_EPOCH` from the `std::time` module into
 // your scope. Bonus style points if you can do it with one line!
-// use ???;
+use std::time::{SystemTime, UNIX_EPOCH};
 
 fn main() {
     match SystemTime::now().duration_since(UNIX_EPOCH) {
diff --git a/exercises/11_hashmaps/hashmaps1.rs b/exercises/11_hashmaps/hashmaps1.rs
index 74001d04..0b8759e6 100644
--- a/exercises/11_hashmaps/hashmaps1.rs
+++ b/exercises/11_hashmaps/hashmaps1.rs
@@ -8,12 +8,14 @@ use std::collections::HashMap;
 
 fn fruit_basket() -> HashMap<String, u32> {
     // TODO: Declare the hash map.
-    // let mut basket =
+    let mut basket = HashMap::new();
 
     // Two bananas are already given for you :)
     basket.insert(String::from("banana"), 2);
 
     // TODO: Put more fruits in your basket.
+    basket.insert(String::from("apple"), 3);
+    basket.insert(String::from("watermelon"), 1);
 
     basket
 }
diff --git a/exercises/11_hashmaps/hashmaps2.rs b/exercises/11_hashmaps/hashmaps2.rs
index 376970d7..27dcaf68 100644
--- a/exercises/11_hashmaps/hashmaps2.rs
+++ b/exercises/11_hashmaps/hashmaps2.rs
@@ -29,9 +29,7 @@ fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
     ];
 
     for fruit in fruit_kinds {
-        // TODO: Insert new fruits if they are not already present in the
-        // basket. Note that you are not allowed to put any type of fruit that's
-        // already present!
+        basket.entry(fruit).or_insert(1);
     }
 }
 
diff --git a/exercises/11_hashmaps/hashmaps3.rs b/exercises/11_hashmaps/hashmaps3.rs
index 9f8fdd78..262e78bf 100644
--- a/exercises/11_hashmaps/hashmaps3.rs
+++ b/exercises/11_hashmaps/hashmaps3.rs
@@ -27,10 +27,12 @@ fn build_scores_table(results: &str) -> HashMap<&str, Team> {
         let team_1_score: u8 = split_iterator.next().unwrap().parse().unwrap();
         let team_2_score: u8 = split_iterator.next().unwrap().parse().unwrap();
 
-        // TODO: Populate the scores table with the extracted details.
-        // Keep in mind that goals scored by team 1 will be the number of goals
-        // conceded by team 2. Similarly, goals scored by team 2 will be the
-        // number of goals conceded by team 1.
+        let entry1 = scores.entry(team_1_name).or_insert(Team { goals_scored: 0, goals_conceded: 0 });
+        entry1.goals_scored += team_1_score;
+        entry1.goals_conceded += team_2_score;
+        let entry2 = scores.entry(team_2_name).or_insert(Team { goals_scored: 0, goals_conceded: 0 });
+        entry2.goals_scored += team_2_score;
+        entry2.goals_conceded += team_1_score;
     }
 
     scores
diff --git a/exercises/quizzes/quiz2.rs b/exercises/quizzes/quiz2.rs
index 8ef1342a..ca1339e6 100644
--- a/exercises/quizzes/quiz2.rs
+++ b/exercises/quizzes/quiz2.rs
@@ -27,7 +27,21 @@ mod my_module {
     use super::Command;
 
     // TODO: Complete the function.
-    // pub fn transformer(input: ???) -> ??? { ??? }
+    pub fn transformer(input: Vec<(String, Command)>) -> Vec<String> {
+        input.iter().map(|(item, cmd)| {
+            match cmd {
+                Command::Uppercase => {
+                    item.to_uppercase()
+                }
+                Command::Trim => {
+                    item.trim().to_string()
+                }
+                Command::Append(size) => {
+                    format!("{}{}", item, "bar".repeat(*size))
+                }
+            }
+        }).collect()
+    }
 }
 
 fn main() {
@@ -37,7 +51,7 @@ fn main() {
 #[cfg(test)]
 mod tests {
     // TODO: What do we need to import to have `transformer` in scope?
-    // use ???;
+    use super::my_module::{transformer};
     use super::Command;
 
     #[test]