【題目】There remains a certain doubt among the people as to the practical value of the project. So the manager ________ it clearly to them now.
A.is explaining
B.explains
C.explained
D.will explain

【答案】A
【解析】A．is explaining 正在解釋，現(xiàn)在進(jìn)行時(shí)態(tài)；B．explains解釋，一般現(xiàn)在時(shí)態(tài)； C．explained過去時(shí)；D．will explain將解釋，一般將來時(shí)；句意：關(guān)于這項(xiàng)工程的實(shí)用價(jià)值，人們?nèi)匀挥幸蓱]，所以現(xiàn)在經(jīng)理正在給他們解釋清楚。由關(guān)鍵詞now可知應(yīng)該用現(xiàn)在進(jìn)行時(shí)，故答案選A。

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