【題目】—What a nice bike it is! When ________you ________it?

— Don’t you know that? I have had it for 3days.

A.have, boughtB.did, buyC.have, had

【答案】B

【解析】

句意：——多漂亮的自行車啊！你什么時候買的？——你不知道嗎？我已經(jīng)買了30天了。

考查特殊疑問句及過去時。根據(jù)疑問句when可知，詢問何時買的自行車，動作一定發(fā)生在過去，此句時態(tài)是一般過去時態(tài)，構(gòu)成特殊疑問句用助動詞did，其結(jié)構(gòu)是When+did+主語+動詞原形+其他？選項(xiàng)A是現(xiàn)在完成時，選項(xiàng)C是完成時，故選項(xiàng)B。buy動詞，買；bought買，過去分詞，短暫性動詞；had買，過去分詞，持續(xù)性動詞。根據(jù)題意，故選B。

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