你是售货员，你见到顾客常说_____
A.How much are they?
B.What time is it?
C.Can I help you?
你想知道你买的东西多少钱，你应该说_____
A.How much is it?
B.How many are they?
C.How old are you?
Can I wear my T-shirt?_____
A.No,you can’t. B.Yes,you can’t. C.No,you can.
It’s cold ____ Beijing.
A.on B.in C.is
It’s 9:45.It’s time ____ music class.
A.to B.for C.of