I have heard a lot of good things about you I came back from abroad.
A. since B. until
C. before D. When
Don't turn off the computer before closing all programs, ________ you could have problems.
A. or B. and
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
It's not easy to change habits, ________ with awareness and self－control, it is possible.
A．for B．or
C．but D．so
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
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
