My friends __________ swim tomorrow.
A.go to      B.are going to      C.are going

My brother is going to__________ my grandparents on Saturday morning.
A. visits     B. visit    C. visiting

-I am going to Beijing for my holiday .
-  __________               
A. I’m sorry .    B. Have a good time !    C. Thank you .

-Can I help you ?
-__________          
A.Yes ,I want to buy a book.      B.Here they are.     C.Thank you .

__________ are you going ?
-This afternoon.
A. When   B. Which  C. Where