题目内容
12.She was able to ride a bike when she was four.( )| A. | had to | B. | must | C. | would | D. | could |
分析 她四岁时就能骑自行车了.
解答 答案:D
be able to固定短语,表能够,侧重于能力,相当于can;此句的意思为:她四岁时就能骑自行车了.have to和must意为"不得不,必须",would是will的过去式,表意愿.根据was及when she was four可知此句描述的是过去的事情,所以替换的词也应用一般过去时的过去式,can的过去式为could.故选:D
点评 本题考查同义短语辨析.做题时除了要注意意义差不多之外,还要注意时态要保持一致.
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