Упражнение 2 :
He has just planted a tree.
He planted a tree yesterday.
He planted a tree an hour ago.
She wrote this exercise yesterday.
She wrote this exercise last week.
She has already written this exercise.
упражнение 4 :
1. gets
2. is, goes
3. is, does
4. has
5. takes
упражнение 5 :
1 is swimming
2. are standing
3. am reading
4. is shining
5. are playing
6. am making
7. are running