1.My mother used to tell me stories_______________ I went to bed.
A.since B.until C.before
2.You better take the keys_______________________ I’m not out.
A.in case B.since C.after
3.My mother like eating fried chicken______________ it’s very bad for his health.
A.because B.although C .when
4.Yesterday, Jim was playing the piano_____________his sister was playing the flute
A.as B.although C.while
5.You shouldn’t spend too much on computer_____________ it is harmful to your eyes.
A.as B.when C.although
6.I will phone you ___________________ I get there.
A.while B.as soon as C.untill
7.The scientist usually works in his lab____________ the sun sets.
A.untill B.as soon as C.although
8.____________you promise not to tell lies again, I won’t forgive you.
A.If B.Even If C.Unless
9._____________her legs were hurt, she made attempt to finish the running track.
A.Even If B.As if C.Unless
10.She talked_____________ she witnessed the accident. But in fact she knew nothing.
A.as if B.even though C.even If
11.I didn’t finish my home work____________ I was seriously ill yesterday.
A.when B.though C.since
12.James decided to save money from now______ he has enough money to travel this summer
A.so that B.though C.when
13.________ we have been friends for only one year, we deeply understand each other.
A.If B.Though C.Once
15.I was cycling home yesterday___________ I saw Jim standing near the foundtain.
A.when B.while C.since
