_______ the forest park is far away, a lot of tourists visit it every year.

A. As B. When

C. Even though D. In case

_______ you start eating in a healthier way, weight control will become much easier.

A. unless B. Although

C. Before D. Once

I'll be out for some time. ______ anything important happens, call me up immediately.

A. In case B. As if

C. Even though D. Now that

Lessons can be learned to face the future, ________ history cannot be changed.

A. though B. as

C. since D. unless

The meaning of the word "nice' changed a few tines it finally came to include the sense "pleasant."

A. before B. after

C. since D. while

Cathy had quit her job when her son was born _______ she could stay home and raise her family.

A. now that B. as if

C. only if D. so that

It's not easy to change habits, ________ with awareness and self－control, it is possible.

A．for B．or

C．but D．so

I was glad to meet Jenny again, ________ I didn't want to spend all day with her.

A. but B. and

C．so D．or

Don't turn off the computer before closing all programs, ________ you could have problems.

A. or B. and

C. but D. so

I have heard a lot of good things about you I came back from abroad.

A. since B. until

C. before D. When