题目内容
I wondered what great difficulty he had ________ the plan.
| A．to carry out | B．carrying out | C．carried out | D．with carrying out |
B
解析试题分析：句意：我想知道他实施这个计划有多难。这句话用了have difficulty（ in）doing这个词组，意思是“做…很困难”，这里因为是感叹句所以把what great difficulty放在了前面，选B。
考点：考查固定词组
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| A．to pick up | B．picking up | C．to be picked up | D．being picked up |
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| A．measures | B．measuring | C．to be measured | D．having measured |
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| A．he invited | B．he is invited | C．invited | D．being invited |
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