问题

It was several minutes ____we realized what was happening-our dog was trapped in a newly-dug tunnel.

A:since
B:before
C:until
D:while;

正确答案是：

同类题型

I’m________about what I say because careless remarks are likely to hurt others’ feelings.[ ]

It was in the lab __________was in the charge of Professor Smith __________they carried out the experiment.

The price of the housesin this district_________from 5% to 7% in the pfalling

Xiao Zhang has ______homework every day and she really doesn’t know ______ first.

Why not the swimming club