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I think students______ to do homework with friends.
A．is allowed B．a(chǎn)re allowed
C．should allowedD．should be allowed
D

試題分析：句意：我認(rèn)為不應(yīng)該允許孩子們和朋友們一起做作業(yè)。結(jié)合語境可知從句為虛擬語氣，主語是動(dòng)作對象，故用被動(dòng)語態(tài)。選項(xiàng)B描述的是客觀事實(shí)，故選D。
點(diǎn)評：此類題型主要是確定句子主語與謂語動(dòng)詞的關(guān)系。如果是主動(dòng)關(guān)系則用主動(dòng)語態(tài)，反之如果是動(dòng)賓關(guān)系，則用被動(dòng)語態(tài)。
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