( ) 21. ---- ________ my pen?
---- It’s in the desk.
A. What’s B. Where’s C. How is D. What colour is
( ) 22. Let’s __________ football after school.
A. plays B. to play C. playing D. play
( ) 23. Can you say this English?
A. of B. on C. in D. at
( ) 24. This is old umbrella. It's my grandpa's.
A. a B. an C. the D. one
