单项选择 较易0.85 引用2 组卷346
________ in the conservation of ocean life, Hannah learnt much knowledge about environmental problems.
| A．Involves | B．Involved | C．Involving | D．Having involved |
21-22高一下·天津宁河·阶段练习
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______in a science competition, the three students were awarded scholarships totaling $ 21, 000.
| A．To be judged the best | B．Judged the best |
| C．Having judged the best | D．Judging the best |
________ by his parents, he still has no confidence in overcoming the difficulties.
| A．Encouraged | B．Encourage | C．Encouraging | D．To encourage |
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