It’s going to rain. You’d better take an umbrella ____

1Talk to your teacher and you will get help _____ you have a problem. （2014临沂）
A.unless
B.if
C.until
D.so
开始考试点击查看答案
2I won’t go to tomorrow’s party _____ I am invited. （2014长沙）
A.if
B.unless
C.When
开始考试点击查看答案
3—I can hardly believe my eyes. Is that you, Lucy、—Ye s. It has been almost 20 years _____ we were together. （2014黄冈）
A.since
B.before
C.after
D.until
开始考试点击查看答案
4He’s not a perfect child. He sometimes talks back _____ his parents talk with him.（2014河南）
A.if
B.before
C.when
D.until
开始考试点击查看答案
5—Would you like to hang out with me、—I’d love to. _____ I have to study for the test. （2014云南曲靖）
A.and
B.so
C.but
D.or
开始考试点击查看答案
6Eric arrived on time, _____ it was the rush hour. （2014河北）
A.although
B.because
C.while
D.unless
开始考试点击查看答案
7Diana isn’t here, _____ leave a message on her desk. （2014河北）
A.or
B.so
C.and
D.but
开始考试点击查看答案
8He’s not a perfect child. He sometimes talks back _____ his parents talk with him. （2014河南）
A.if
B.before
C.when
D.until
开始考试点击查看答案
9Don’t run in the classroom, _____ you may hurt yourself. （2014陕西）
A.and
B.or
C.but
D.so
开始考试点击查看答案
10They will lose the game _____ they try their best. （2014黔西南州）
A.unless
B.once
C.since
D.after
开始考试点击查看答案

It’s going to rain. You’d better take an umbrella _____ you may get wet. （2014长沙）