And _______ the bad weather, we couldn’t see anything below.

It was not until then that I came to know that knowledge _______ only from practice.

I wonder what will become of my daughter_____ endless homework, she also bears other leading loads such as revision and recitation

Lto a disaster.

The accompany (陪伴) of parents is very important.— Yes. _____ parents are busy, they should try to spend more time with their children.