I cleaned my classroom ___________.
| A．with three hours | B．three hours ago | C．in three hours | D．three hours before |
What is Wu Yifan donging ? He’s.
A. taking pictuersB. take pictuers C. taking a pictures
The _____ day of a week is Wednesday.
A. first B. second C. third
Do you see _____ elephants?
A. some B. any C. one
Can the pandas ______?
A. swimming B. swim C. are swimming
Dad, there’s a call _____ you.
A. for B. on C. to