___ you have finished your homework, you can go and play with your friends.

____ caused the accident is still a complete mystery.

It is an unfair thing for our students____ have devoted 12 years to preparing the exam to be beaten by those_____ use illegal methods..

Nobody could be sure____ Mr Goldman did it so well.

You shouldn’t go out without a coat ,         it’s rather cold .

    we should exploit the Antarctic’s natural resources is open to discussion.

The family settled in New York in 1970 and has lived there_______.

Careful surveys have indicated that audience ________ teachers and students be more likely to take seats ________ directed.

_____ we can see, we can’t get very far in this project without her help.

I’ll lend you my bike_____ you take care of it.