【题目】I don't think we should _______ our business in the present economic climate.
A.express
B.explain
C.exhaust
D.expand

【答案】D
【解析】考查动词词义辨析。句意：我认为我们不应该在目前的经济环境中扩大业务。express “表达”；explain“解释”；exhaust “用尽，耗尽”；expand“使...…变大，扩张”。根据题意，故选D。