Tim often helps the old man in his free time.
A . when he is hungry
B. when he is not with anyone
C. when he isn't busy
There _____ thirty desks in my class.
A.is B.are C.be
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