问题

He will _______ you next week if he is free.

A:drop in
B:drop in at
C:drop in on
D:call at

正确答案是：

同类题型

Only by working hard and never giving up our goals

86 — What does your father do— He was a _________in the post officebut now he is promoted to the postmaster

The book tells stories of the earthquake through theeyes of those _______ lives were affected

This question is very difficult __________ I ask my brother for help.

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