12-13高二下·湖南长沙·阶段练习
1 . A study ________ in the U.S.A. in 1977 showed that the chemical ASA in aspirin could prevent a stroke.
| A．carrying out | B．carried out | C．working out | D．worked out |
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12-13高二下·湖南益阳·期末
2 . ________ to be the best one in the group, she had an opportunity to enter for the final competition.
| A．Judging | B．To Judge |
| C．Having judged | D．Judged |
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