5. My aunt doesn't have much money, _________ she always enjoys himself.

A. but 　　　　　B. and　　　　 C. or　　　 D. so

4. Mr. Green knows little German, _________ he can't understand the instructions on the bottle of the pills.

　A. but 　　　　　B. so　　　　 C. for　　　　 D. or

3. Lucy and Lily are twins. Lucy likes playing table tennis, _________ Lily doesn't.

　A. or　　　　　 B. but　　　　 C. and　　　 D. yet

2. Edison said, “Never give up, _________ you'll make it.”

A. yet　　　　 B. or 　　　　C. and 　　　D. but

1. Be careful, _________ you will fall off the bike.

A. but　　　　 B. and　　　　 C. so 　　　　D. or

5.　　　 He had a drink, _______ went to bed.

4.　　　 I wanted to know the answer, _______ I went to ask him.

3.　　　 I like chocolate, _______ it is bad for teeth.

2.　　　 Hurry _______ you will miss the plane.

1.　　　 They are happy _______ they deserved their happiness.