He devoted all his time he had _____ others.
| A．to help | B．helping |
| C．to helping | D．helped |
Go back to your ________, please.
A. sitB. seatC. sit down
The blackboard is _______ the wall(墙).
It is_________ in the wall.
A. on, not B. on, /C. in, no
-- Take your seat, Zhang Hui. -- ________
A. Yes, sir. B. Right, sir.C. Thanks, sir.
________ is English. _________ name is Henry.
A. He, Her B. She, His C. He, His
-- Can you ___________ a pencil?
-- Sorry.
A. watchB. seeC. look