b
1, He has learnt English for two years now.
2, Cars and buses move along slowly because the weather is foggy.
3, Nobody can predict what will happen.
4, The noise of the traffic prevented me from going to sleep.
5, Since the beginning of the course, I have never been late for class.
Question 8
1, So far he has typed fifteen pages of the report.
2, My English friend isn’t used to using chopsticks.
3, It’s such an expensive car that I don’t think I can buy it.
4, This is the most amusing story I have ever heard of.
5, I was about to leave the house when the telephone rang.
6, I never had an intention of helping such a man.