—How much shall I pay for the food?—You          .This is free of charge.
#87632
A
mustn’t
B
needn’t
C
shouldn’t
D
couldn’t
推荐题目
You ___ me, but since you have,I’ll keep it secret from others.
#89047
A
needn’t have told
B
didn't need to tell
C
wouldn't have told
D
couldn't have told
When a pencil is partly in a glass of water, it looks as if ____. 
#89905
A
breaks
B
has broken
C
were broken
D
had been broken