Write and apply

2．Fill in each of the complex sentences with a subordinating conjunction that best shows the relationship between the clauses: because, since, if, although, or unless.

Example: You may leave class early if you have completed the experiment.

1. you don't know where the counseling office is, I'll be glad to take you there.
2. The wheat harvest was delayed two weeks the cool weather had slowed growth.
3. the government agrees to give extra money, the theatre will have to close.
4. He passed the examination he had been prevented by illness from studying.
5. Charles has lived in the mountains, he has never come down to the city.