--Why is she at Xiao Ying’s home? --_________ they are friends.
A. So B. For C. Since D. Because
We are ________ a school trip..
A. in B. on C. at D. for
---When is Christmas? --- It’s _____ December 25.
A. in B. to C. on D. at
---Is Nancy doing her homework? -----___________.
A. No, she is B. No, she isn’t
C. Yes, she does D. Yes, she isn’t
What ___________?
A. does happen B. is happening
C. do happen D. are happening
What ________ you usually ________ for the Lantern Festival?
A. do, do B. are, do
C. are, doing D. do, doing
