diff --git a/student_no.txt b/student_no.txt
index 2a6816f..b99295e 100644
--- a/student_no.txt
+++ b/student_no.txt
@@ -1 +1,2 @@
 # Please enter your 9-digit student number below.
+100243246
diff --git a/task1/sources/main.move b/task1/sources/main.move
index 2507060..2b78080 100644
--- a/task1/sources/main.move
+++ b/task1/sources/main.move
@@ -5,13 +5,13 @@ module 0x42::Task1 {
     // TODO
     // Define a struct called Wallet with a single field called balance of type u64.
     struct Wallet has drop {
-        // ...
+        balance: u64
     }
 
     // TODO
     // Define a function called myWallet that returns a Wallet with a balance of 1000.
     fun myWallet(): Wallet {
-        // ...
+        Wallet{balance: 1000}
     }
 
     #[test]
diff --git a/task2/sources/main.move b/task2/sources/main.move
index d6746d8..3aa1c6b 100644
--- a/task2/sources/main.move
+++ b/task2/sources/main.move
@@ -1,17 +1,17 @@
 // Task2 - drop, copy, store
 module 0x42::Task2{
-    use std::signer;
 
     // TODO
     // Define a struct Foo with two fields: u: u64, b: bool with ability to drop
-    struct Foo {
-       // ...
+    struct Foo has drop{
+        u: u64,
+        b: bool
     }
 
     // TODO
     // Define a function gen_Fool that takes two arguments: u: u64, b: bool and returns a Foo
     fun gen_Fool(u:u64, b:bool): Foo {
-        // ...
+        Foo{u, b}
     }
 
     #[test]
@@ -32,14 +32,15 @@ module 0x42::Task2{
 
     // TODO
     // Define a struct Soo with two fields: x: u64, y: u64 with ability to copy
-    struct Soo {
-        // ...
+    struct Soo has copy{
+        x: u64,
+        y: u64
     }
 
     // TODO
     // Define a function gen_Soo that takes two arguments: x: u64, y: u64 and returns a Soo
     fun gen_Soo(x:u64, y:u64): Soo {
-        // ...
+        Soo{x,y}
     }
 
     #[test]
@@ -56,13 +57,13 @@ module 0x42::Task2{
 
     // TODO
     // Define a struct Koo with a field: s: Moo with ability
-    struct Koo {
+    struct Koo has drop{
         s: Moo
     }
 
     // TODO
     // Define a struct Moo with a field: x: u64 with ability
-    struct Moo {
+    struct Moo has store, drop{
         x: u64
     }
 
@@ -70,7 +71,7 @@ module 0x42::Task2{
     // TODO
     // Define a function gen_Moo that takes an argument: x: u64 and returns a Moo
     fun gen_Moo(x:u64): Moo {
-        // ...
+        Moo{x}
     }
 
     #[test]
diff --git a/task3/sources/m1.move b/task3/sources/m1.move
index e3542c4..02c25c5 100644
--- a/task3/sources/m1.move
+++ b/task3/sources/m1.move
@@ -6,17 +6,17 @@ module 0x42::M1{
 
     // TODO
     // Define a module friend M2
-    friend       ;
+    friend 0x42::M2;
     
     // TODO
     // Define a function num that returns 66 with choose public or friend visibility
-    fun num():u64 {
+    public fun num():u64 {
         66
     }
 
     // TODO
     // Define a function num2 that returns 88 with choose public or friend visibility
-    fun num2():u64 {
+    public(friend) fun num2():u64 {
         88
     }
 }
\ No newline at end of file
diff --git a/task3/sources/m3.move b/task3/sources/m3.move
index 1b25c74..1748ac0 100644
--- a/task3/sources/m3.move
+++ b/task3/sources/m3.move
@@ -4,6 +4,6 @@ module 0x42::M3{
         use 0x42::M1::num;
 
         let n = num();
-        assert(n == 66,0);
+        assert!(n == 66,0);
     }
 }
\ No newline at end of file
diff --git a/task4/sources/main.move b/task4/sources/main.move
index daa4423..cc194ea 100644
--- a/task4/sources/main.move
+++ b/task4/sources/main.move
@@ -12,19 +12,19 @@ module 0x42::Task4 {
     // TODO
     // 1. create a deleteable object
     public fun createDeleteableObject(caller: &signer):ConstructorRef {
-        // ...
+        object::create_object(signer::address_of(caller))
     }
 
     // TODO
     // 2. create a named object
     public fun createNamedObject(caller: &signer):ConstructorRef {
-        // ...
+        object::create_named_object(caller, NAME)
     }
 
     // TODO
     // 3. create a sticky object
     public fun createStickyObject(caller: &signer):ConstructorRef {
-        // ...
+        object::create_sticky_object(signer::address_of(caller))
     }
 
     #[test(caller = @0x88)]