It is our duty ______much attention to ________ our best to keep our city clean.
A.to pay, trying | B.paying, trying |
C.pay, try | D.to pay, try |
- on the desk?
-Yes, it is.
A. What's B. Where is C. Is Bill's bag
These are our books. Please look after_________.
A. their B. they C. them
It's time listen the music.
A. to; / B. for; to C. to ; to
Who do you write to?
A.want B.want to C.to
Excuse me, how can I the History Museum?
A. get to B.gets to C.to get