Exercises about tenses

Ex 1: Exercises about tenses
1. I (learn)_____________ English for seven years now.
2.I (think) ____________I (do)_________- one unit every week.
3. If I (pass)_____________ my exams successfully, I (start) an apprenticeship in September.
4.Na _____ (drive) Rose to work today.
Ex 2: Choose the best answer
1. When I last saw him, he _____ in London.
A. has lived
B. is living
C. was living
D. has been living
2. He fell down when he ______ towards the church.
A. run
B. runs
C. was running
D. had run 
3.The little girl asked what _______ to her friend.A. has happened
A. has happened
B. happened
C. had happened
D. would have been happened