问题

While building a tube through the mountain, _____. [ ]

A: an underground lake was discovered
B: there was an underground lake discovered
C: a lake was discovered underground
D: the workers discovered an underground lake

正确答案是：

同类题型

Many students believe the choice of their courses anduniversities should____ __ their own interest.

Why do you want a new job ______ you’ve got such a good one already?

Work hard and you’ll______ one day.—You are right. Working hard leads to_____.

, I havenever seen anyone who’s as capable as John．

____ will do you good to do some exercise every morning.

正确答案网

While building a tube through the mountain, _____. [ ]