问题

Mary must keep her mind on her medical studies now, so it would be years ______ she could think about marriage

A:before
B:when
C:since
D:until

正确答案是：

同类题型

w won’t like it, you know Can youchange its color— ________! I don’t care what Andrewthinks

The man I was talking is my friend.

Who are you looking for? —Mr White—Wait here for a whileThe class meeting_______ over in half an hour

_____ all the demands had been refused_____ to go on strike.

Hello, Jenny. Your box looks so heavy. Let me give you a hand.-_______I’m OK.