Question

He... off his motor-bike, but his injuries were not serios .
1)felt 3)fell
2)falled 4)fallen
Sally .... of getting a new computer.
1)think 3)is thinking
2)thinks 4) is thought
It was very difficult to sail the boat into a harbour / The wind..... too hard
1)has been blowing 3)was blowing
2)had blowing 4)was blown
The three friends...... each other for mane years.
1)known 3)will known
2)have known 4)had known
I'll wait tiil you .... up . I'm not in a hurry/
1)wiil close 3)have closed
2)wiil be closing 4)have been closing
I thought that the plan..... by the commitee , but i was mistaken
1)had been prepared 3)has prepared
2)had prepared 4)would prepare/
Paper, the main writting material , ..... by the Chinese/
1)invented 3)has benn invented
2)has invented 4)was invented
The hew ship .... next week
1)is being launched 3)launches
2)is benn launched 4)is launching
A couple of mouths fron now, you'll .... all about before.
1)be probably forgotten 3)probably be forgot
2)probably have forgotten 4)have probably forgetting
Andrew said that his brother... to hospital the day before.
1)was taking 3)had benn taken
2)was taken 4)has been taken/
I don't like light-minded people. I'll never believe they..... be serious.
1)сan 2)ought to
2)must 3)have to
The witness saw the lorry .... into the back of the car before it burst into flames
1)to crash 3)crashed
2)crash 4)has crashed

Answer 1

1) 3 (fell)
2) 3 (is thinking)
3) 3 (was blowing)
4) 2 (have known)
5) 3 (have closed)
6) 1 (had been prepared)
7) 3 (has been invented) 
8) 1 (is being launched)
9) 2 (probably have forgotten)
10) 4 (had been taken)
11) 1 (can)
12) 2 (crash)