[hmhm2006]

1-The money he had wasn't enough, so he didn't buy a new flat.

(If the money / If he)

2- I was playing the guitar. I'm sorry I didn't know you were asleep

(If)

3-He failed his driving test as he was very nervous

(Had / If)

4- Nabil didn't attend my birthday party,that's why he didn't see our friends

(Had / If)

5- I wasn't able to get a ticket so I didn't go to the concert

(If)

6-Without the doctors ' efforts, many people would have died

(If it / unless)

7-I left him my book and therefore he could study his lessons

(If)

8- He failed because of his carelessness

(If)

9- If he hadn't apologized , I wouldn't have forgiven him

(without / unless)

10- If he had worked hard , he'd have passed the exam

(because/so)

11- He went to bed late last night so he feels sleepy this morning

(If)


12-If I had knownhe was ill, I'd have visited him at once

(I did't)

13- You'd better stop smoking

(If)

14- If it rains tomorrow, I won't go to work

( In case of )