18．--Hi，Mike，I can't find my e-dictionary．
--Sorry，It ______ now．I will return it to you in ten minutes．（　�。�
A．is usingB．is being usedC．usesD．was used

分析 --馬克，你好，我找不到我的電子辭典了．
--對(duì)不起，我正在用．我將會(huì)10分鐘之后還給你．

解答 答案：B．
根據(jù)I will return it to you in ten minutes可知我將會(huì)10分鐘之后還給你，所以前句表示電子辭典現(xiàn)在正在被用．因此use用現(xiàn)在進(jìn)行時(shí)的被動(dòng)，答案是B．

點(diǎn)評(píng) 考查現(xiàn)在進(jìn)行時(shí)的被動(dòng)．用法：
1）"be being done"中的動(dòng)詞be應(yīng)隨主語（sing．/pl．）作相應(yīng)的變化．
2）將現(xiàn)在進(jìn)行時(shí)的主動(dòng)語態(tài)變?yōu)楝F(xiàn)在進(jìn)行時(shí)的被動(dòng)語態(tài)的關(guān)鍵是：把be doing變?yōu)閎e being done．
例1．The students are cleaning the classroom now．
→The classroom is being cleaned now．

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