题目内容
12.The Harry Potter books____________pretty popular since they were published.( )| A. | become | B. | will become | C. | have become | D. | are becoming |
分析 书籍《哈利波特》自从出版以后就变得很受欢迎.
解答 答案:C 根据"since they were published"可知这是since+过去的时间点,这是现在完成时的标志词.故此空应用现在完成时(have/has+done),主语books为复数,用have,故选C.
点评 本题考查现在完成时态.判断时态要看其标志词或时间状语.所以找准标志词是做题的关键.
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