．—Icalledyouyesterday.Awomanan

．—I called you yesterday. A woman answered, but I didn’t recognize her voice.
—Oh, it _____ my aunt Jean.

A．must be

B．must have been

C．might be

D．can have been

登录免费查看答案和解析

相关试题

Evidence obtained from observation and experiment is often used to ________ a scientific theory.

A．confirm	B．claim
C．conclude	D．calculate

收藏答案/解析

．Faced with a problem，you have to ________ it first，and then try to find a solution.

A．resemble	B．substitute
C．concentrate	D．analyze

收藏答案/解析

Teaching pronunciation class to a mixed group of learners can ________ a teacher with many challenging problems.

A．provide	B．produce
C．present	D．offer

收藏答案/解析

All my pockets have been ________ but I can’t find my keys.

A．got through	B．given out
C．gone through	D．gone down

收藏答案/解析

—OK，I’ve had enough of it.I give up.
—You can’t________your responsibilities. (2012·江苏，26)

A．run off with	B．run up against
C．run out of	D．run away from

收藏答案/解析

推荐套卷

热门套卷