摘要：第一节:单项填空(共15小题,每小题1分.满分15分) 从A.B.C.D四个选项中.选出可以填入空白处的最佳选项.并在答题卡上将该项涂黑. 21. computer, which was invented in the 1950s, is widely considered as useful tool in modern society. A. The, an B. A, the C. 不填, an D. The, a22. is known to all is that while driving drivers should keep an eye out for road signs, on which are words or symbols giving directions or other traffic instructions. A. What B. As C. It D. Which23． with a difficult situation.Arnold decided to ask his boss for advice． A．To face B．Having faced C．Faced D．Facing
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第一节：单项填空(共15小题；每小题1分，满分15分)
Of all the subjects, I like ______ physics best because it gives us ______ useful knowledge of things in science. And I long to turn ______ scientist in the future.
A. the ; a ; a B. / ; an ; / C./ ; a ; / D. the ; / ; /
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第一节：单项填空(共15小题；每小题1分，满分15分)
Of all the subjects, I like ______ physics best because it gives us ______ useful knowledge of things in science. And I long to turn ______ scientist in the future.
| A．the ; a ; a | B．/ ; an ; / | C．/ ; a ; / | D．the ; / ; / |
第一节 ：单项填空（共15题；每小题1分，满分15分）
1. Dick is over sixty, but he looks young for his age. He is always full of ______.
A. energy B. power C. strength D. force
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