48. If you____hard, you____in the exam.
A. worked/ wouldn’t have failed B. had worked/ wouldn’t fail C. had worked/ wouldn’t have failed D. worked/ wouldn’t fail
49. When we drove to the country, we saw many ____.
A. herds of cattles B. herds of cattle C. herd of cattle D. herd of cattles
50. Don’t go there this afternoon, I’d rather you____ tomorrow.
A. went B. go C. will go D. would go
51. They saw a new movie at the theatre,____they had dinner at a Chinese restaurant.
A. then which B. which after C. after which D. after that
52. In my country, the____ are all distributed free.
A. letters box B. letters boxes C. letter’s box D. letter boxes
53. I wish to go home with you,____?
A. may I B. shall I C. would I D. can I