---Could you please come to the museum with me this afternoon?---Sorry, I ______ . I have to take a piano lesson at 2 pm.
#74382
A
couldn’t
B
mustn’t
C
can’t
D
needn’t
推荐题目
The door _____ open, no matter how hard she pushes.
#62530
A
doesn’t
B
can’t
C
won’t
D
shouldn’t
When I went to their house, there was no light on. They _____ at home.
#62992
A
can’t be
B
couldn’t be
C
can’t have been
D
mustn’t have been
 - Must I clean the Lable now? - No, you ____.  You may do it later.
#76561
A
can’t
B
needn’t
C
mustn’t
D
shouldn’t
 This book ______ , because his name is on the book. 
#74799
A
can be Tom’s father’s
B
can’t be Tom’s father’s
C
must be Tom’s father’s
D
must be Tom’s father