All the preparations for the task ___________, and we’re ready to start.
A．completedB．completeC．had been completedD．have been completed
D
現(xiàn)在完成時(shí)表示過去年做的事對現(xiàn)在的影響。從and we’re ready to start句意可知，一切準(zhǔn)備工作已經(jīng)就緒，可以開始工作了。complete是及物動詞，與句子的主語是被動關(guān)系，所以需要用被動語態(tài)表達(dá)。注意①分清complete與主語之間的關(guān)系；②結(jié)合語境選擇正確時(shí)態(tài)。
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