A:（）are your parents? B: They are in China.

单项选择题Look at Tom! What（）?

A.does he do
B.is he doing
C.he is doing

单项选择题Does he（）on weekends

A.usually works
B.works usually
C.usually working

单项选择题There aren't（）books in my bag.

A.no
B.some
C.any

单项选择题Kate and Mike always do（）homework together.

A.his
B.her
C.their

单项选择题（）call a taxi?

A.What about
B.How about
C.Why don’t you