Hurry up,Mary _______for us at the station.A.must be waiting B.must wait
问题描述:
Hurry up,Mary _______for us at the station.A.must be waiting B.must wait
答
A 一定在等着我们
Hurry up,Mary _______for us at the station.A.must be waiting B.must wait
A 一定在等着我们