— I rang you up last night, but nobody answered.— Oh, I usually ________ off my

题型：不详难度：来源：

— I rang you up last night, but nobody answered.
— Oh, I usually ________ off my phone at about 9:00 p.m.

A．switched	B．have switched
C．switch	D．had switched

答案

C

解析

试题分析：考查时态：句意：昨晚我打电话给你，但是没有人接电话。--哦，我通常下午九点关手机。因为是通常做…，用一般现在时，选C。