. I missed the train because I got a traffic jam.
-> If I
6. He isn't intelligent enough to answer this question.
-> If he.
7. Mary didn't come so we cancelled the meeting.
-> If Mary
8. You can't visit the USA unless you get a visa.
-> If you
9. My mother didn't give me the house key so I didn't get in.
-> If
. I missed the train because I got a traffic jam.
-> If I hadn't got a traffic jam, I wouldn't have missed the train
6. He isn't intelligent enough to answer this question.
-> If he. were intelligent, he would answer this question
7. Mary didn't come so we cancelled the meeting.
-> If Mary had come, we wouldn't have cancelled the meeting
8. You can't visit the USA unless you get a visa.
-> If you get a visa, you can visit the USA
9. My mother didn't give me the house key so I didn't get in.
-> If you had given me the house key, I would have got in
