31. What do you think is better, reading slowly or reading quickly?

16.

23.

28. In the author’s opinion, _____.         

21.

37. I helped out with the housework and _________ (contribute) to the groceries.

10. I wish that you ______ such a bad headache because I’m sure that you would have enjoyed the concert.

11. One-third of the area ______ covered with green trees. About seventy percent of the trees ______ been planted.

12. Never_______forget the days when_______ together with you

36. Stress is only ______ (harm) when it becomes overwhelming and interrupts the healthy state in balance.

34. Why should we must read instructions slowly?

41. The British have many traditions but there is nothing more quintessential (典型的) than _________ (take) afternoon tea.