【题目】My father often ______ his book ______ his office. ( )
A.leaves; behind B.leaves; in C.leave; behind
【答案】B
【解析】
句意:我爸爸经常把他的书落在办公室。把东西落下动词用leave,习惯性动作用一般现在时态,主语是爸爸,谓语动词用第三人称单数形式;在办公室介词用in;behind表示在……后面,不符合语境。故选B。

【题目】My father often ______ his book ______ his office. ( )
A.leaves; behind B.leaves; in C.leave; behind
【答案】B
【解析】
句意:我爸爸经常把他的书落在办公室。把东西落下动词用leave,习惯性动作用一般现在时态,主语是爸爸,谓语动词用第三人称单数形式;在办公室介词用in;behind表示在……后面,不符合语境。故选B。