用适当的并列连词填空。
15.It doesn't look like rain,__________you'd better take your umbrella with you.
16.He is strong,__________his brother is weak.
17.I often help him__________he often helps me.
18.Not only did he like it,__________his wife also was satisfied.
19.She must be out,__________the lights are out.
20.I'll come either tomorrow__________next Monday.
21.She is weak__________her son is strong.
22.He said it was so,__________,he was wrong.
23.I never saw him again,__________did I hear from him.
24.She is a funny girl,__________you can't help liking her.
25.Hurry up,__________we'll be late for the train.
26.Use your head,__________you'll find a way.
27.It was dark,__________we went home.
28.We were about to leave__________it began to rain.
参考答案及详解
15.(but) still 16.while 17.and 18.but 19.for 20.or 21.while/but
22.however 23.nor 24.yet/but 25.or/otherwise 26.and 27.so/and 28.when
