You don’t say whether you wish the transaction to be ()cash on credit.
A、at
B、by
C、on
D、in
第1题:
-Mayweleavetheclassroomnow?
-No,you______.You______toleaveuntilthebellrings.
A.mustn’t,areallowed
B.don’thaveto,aresupposed
C.needn’t,aren’tallowed
D.can’t,aren’tsupposed
第2题:
You_________tell anyone一it's a secret!
A. have to
B. don't have to
C. must
D. mustn't
第3题:
I put my coat here? Sorry, you()
AMay; mustn't
BDo; don't
Ccan; needn't
DMay; can't
第4题:
Must I stay at the office this afternoon? ---No, you ______.
A、don’t
B、needn’t
C、don’t need
D、can’t
第5题:
You_____tell anyone -it's a secret!
A. have to
B. don't have to
C. must
D. mustn't