问题

When has the country been open to internationaltrade?—_____1978 , Isuppose
A: Since
B: In
C: From
D:After
B: In
C: From
D:After
正确答案是:
同类题型
They left the town on the morning _____ June 22nd. [ ]
How careful Jim is! – He writes ____ in our class.
I often go to school_____foot, but I had to go to school_____taxi yesterday because of rain.[ ]
Tom didn’t go to school _____ this morning because he overslept. [ ]
I feel bored with working all day. —Why not some sports to relax yourself?