He promised to do what he ______ sure of _______.A．could make; my happyB．could
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He promised to do what he ______ sure of _______.| A．could make; my happy | B．could to make; me happy | | C．could make; my happiness | D．could to make; my happiness |
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答案
| D |
解析
| 本题句意“他许诺做他能做的保证使我幸福”。what he could (do)to make sure of my happiness，其中to make sure of my happiness做状语。 |
举一反三
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