Question

【题目】—Is that Mary under the tree over there? —It her. She ____ abroad for a month.

A. must be , has been in B. mustn’t be , has gone

C. can’t be, has been D. can’t be , has gone to

Answer 1

【答案】C

【解析】

试题分析：句意：—那边树下面是玛丽吗？—那一定不是她，她在国外呆了一个月了。根据句意及题干分析“一定不是”应用can’t；第二空根据时间状语for a month应用has been， has gone to不能与时间段连用，故选C。