72.　　 72.　　 ______ you try, you’ll never lose your English accent.

a. No matter what　　 b. How hard　　 c. No matter how hard　　 d. Whatever hard

71.　　 71.　　 Not everybody could be expected to know all the answers, ______ some questions called for educated guesses rather than general knowledge.

a. as　　 b. so　　 c. such　　 d. once

70.　　 70.　　 The size of the audience, ______ I had expected, was well over ten thousand.

a. which　　 b. that　　 c. as　　 d. whom

69.　　 69.　　 ______ he performed the task with success.

a. It was expected　　 b. Which was expected　　

c. As was expected　　 d. That was expected

68.　　 68.　　 Nuclear weapon is considered the most terrible weapon of war ______ man has invented.

a. which　　 b. that　　 c. as　　 d. since

67.　　 67.　　 ______ has recently been done to improve the conditions of elementary schools a great number of children are unable to go to school.

a. That　　 b. What　　 c. In spite of what　　 d. Though what

66.　　 66.　　 I am pleased with what you have told me and ______ you have given me.

a. all what　　 b. all that　　 c. which　　 d. all whatever

65.　　 65.　　 A joint is ______ permits the forward and backward movement of a door.

a. that　　 b. whose　　 c. those　　 d. what

64.　　 64.　　 Hardly had the speaker begun to talk ______ were laughs.

a. when there　　 b. than there　　 c. than　　 d. that

63.　　 63.　　 I punish the child ______ he should make the same mistake again.

a. as　　 be because　　 c. lest　　 d. unless