1. — Why didn’t Mike come to school today?
—________ he is ill.
A. If B. After C. Before D. Because
2. We won’t be able to start ________ our cars are repaired.
A. when B. after C. since D. until
3. — Was the old lady saved?
—No. The soldiers did their best to save her, ________ they failed.
A. but B. or C. and D. so
4. As modern middle school students,we should learn to love ________ ourselves ________ others.
A. both;and B. either;or
C. neither;nor D. as;as
