________ you ought to do now is to see a doctor at once.A．HowB．ThatC．WhichD．What
题型：不详难度：来源：
| ________ you ought to do now is to see a doctor at once. |
答案
| D |
解析
试题分析：考查主语从句：句意：你应该做的是立刻看医生。Is前面是主语从句，缺少宾语，用what引导主语从句，how怎么（表示方式，不能做宾语），that引导主语从句的时候，不做成分，which哪个（不符合句意），选D。 |
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| She told me that ______ was needed at that time was some good luck. |
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