Question

【題目】The letters for the boss on his desk but he didn't read them until three days later.
A.were put
B.had put
C.would put
D.have put

Answer 1

【答案】A
【解析】句意為：給老板的那些信被放在了桌子上，但直到三天后他才讀的。根據(jù)but后的“didn’t read”可知老板讀信是發(fā)生在過去，所以信被放到桌子上應(yīng)該發(fā)生在“讀信”之前，也是過去的動(dòng)作，與現(xiàn)在無關(guān)，所以排除D項(xiàng)；the letters與put之間為被動(dòng)關(guān)系，故排除C項(xiàng)；而且the letters作主語，是復(fù)數(shù)，可排除B項(xiàng)。所以答案為A項(xiàng)。