题目列表(包括答案和解析)

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19. He found ________ very difficult ___________ the math problem.

A. that; to solve          B. this; solving        C. himself; solve      D. it; to solve

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18. Gilbert __________ electricity, but Edison ________ the light bulb.

A. discovered; created                 B. invented; discovered

C. found; created                    D. discovered; invented

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17. In his free time, he often teaches me how __________.

A. swim            B. swimming         C. to swim           D. swims

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16. Look around while ___________ the street.

A. cross             B. crossing          C. crossed           D. to cross

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15. Sam, you hair is too long and it looks dirty. You’d better ________ it _______.

A. have, to cut           B. get, cutting        C. have, cut          D. get, cutted

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14. She worked so quietly _________ no one knew she was there.

A. which            B. after             C. as               D. that

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13. –---Is your stomachache getting __________?  ----No, it’s worse.

A. better            B. bad              C. less              D. well

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12. Daniel plays chess __________, if not better than, David.

A. as well           B. as well as         C. so well           D. so well as

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11. The World Wide Wed is sometimes jokingly called the World Wide Wait because it __________ be very slow.

A. should               B. must             C. will             D. can

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10. The boy was often seen __________ on the sports ground.

A. to play               B. play             C. played            D. to playing

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