Question 33: C. I haven't been there since my visit over two years ago.
Question 34: B. Jane said John left here an hour before.
Question 35: B. An ambulance has just been sent to the school.
Question 36: B. If I insert a CD, my computer crashes.

Question 37: C. We wish she went to China with us.
Question 38: A. My friend Albert, whose car was stolen last week, has decided to buy a motorbike.
Question 39: B. The more we cut down forests, the hotter the Earth becomes.
Question 40: B. It is going to rain, so you should bring a raincoat with you.