18．-Your bike is very nice!How long have you ________ it？
-Less than two weeks．（　�。�
A．boughtB．hadC．borrowed

分析 -你的自行車很漂亮！你買了多長時(shí)間了？
-不到兩周．

解答 答案：B
根據(jù)答語：Less than two weeks不到兩周，可知how long 問的是多長時(shí)間，動(dòng)詞要用延續(xù)性動(dòng)詞，bought是buy的過去分詞，是非延續(xù)性動(dòng)詞，應(yīng)該用have來代替，have的過去分詞是had；borrow借，與題干意思不符，故選B．

點(diǎn)評 本題主要考查動(dòng)詞時(shí)態(tài)，做此類題目要注意時(shí)間狀語、標(biāo)志詞．根據(jù)上下文所表達(dá)的含義，做出判斷．同時(shí)更應(yīng)記清時(shí)態(tài)的構(gòu)成形式．就本題而言，主要考查現(xiàn)在完成時(shí)態(tài)的延續(xù)性動(dòng)詞和非延續(xù)性動(dòng)詞．

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