问题

The police said they would not give up looking into other possibilities ____they find out what happened

A:as
B:while
C:until
D:although

正确答案是：

同类题型

youmet the Englishman

Mary is flying to France soon. She willarrive ______ Paris _______ the morning of May, 9.

My father has ______ for two weeks. I miss him so much.

You should________your spare time better if you want to be promoted.[ ]

Everyone in my family music.