41. ______ sharks are heavier than water, they must swim continuously or they will sink to the bottom.

A. Since　　　　　　　　　 B. Though　　　　　　　 C. When　　　　　　　　　 D. Once

40. ______ I entered, he was _____ in his book and didn’t notice me.

A. When; devoted　　 B. While; absorbed 　 C. When; absorbed　 D. While; devoted

39. The rise in the price of bread will ______ us all.

A. effect　　　　　　　　　 B. have affect on　　　 C. affect　　　　　　　　　 D. have effect to

38. She often quarreled with her husband. At last, they had their marriage ______.

A. dissolve 　　　　　　　 B. dissolving　　　　　　 C. dissolved　　　　　　 D. to dissolve

37. The matter is unimportant, ________ speaking.

A. relative　　　　　　　　 B. relatively　　　　　　　 C. relation　　　　　　　　 D. related

36. Everyone arrived late at the party for _________ reasons.

A. variety of　　　　　　 B. a varieties of　　　　 C. various of　　　　　　 D. varieties of

35. The book was boring. It wasn’t _______ to me.

A. benefit　　　　　　　　 B. benefited　　　　　　 C. of little benefit　　　 D. of much benefit

34. At 5 o’clock workers ________ out of the factories.

A. were poured　　　　 B. poured　　　　　　　　 C. were rushed　　　　 D. pouring

33. Can you ________ the difference between the twin brothers?

A. say　　　　　　　　　　　 B. speak　　　　　　　　　 C. talk　　　　　　　　　　 D. tell

32. ______, I’m not very interested in going to the show.

A. To talk the truth　　 B. To say the truth 　 C. To tell the truth　　 D. To tell truth