题目内容
9.-Why didn't you ask Jack for help?--I asked him if he _____ help me,but he said no.( )
| A. | need | B. | must | C. | could | D. | should |
分析 --你为什么不向杰克寻求帮助.
--我问他是否能帮我一下,但是他说不.
解答 答案:C.need需要;must一定,必须;could能,会;should应该.根据but he said no,可知他说不能帮助我,可以推测前面的句子应该是:我问他能否帮我一下.能,用can,在这里放在asked后面的宾语从句中,要和asked的时态保持一致,所以应该用can的过去式could.故选C.
点评 本题考查了情态动词的用法.熟知句意以及所给选项的意思是解答本题的关键.
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