When _______ you _______ to China? In 2002.
A.did come B. do come C. are coming
These are Betty’s books. ____________, please.
A.give it to her B. give them for her C.give them to her
What’s it _________.
A.in B. at C.about
They are __________ books now.
A.read B. reading C.reads
He often _______ TV on Sunday
A. watches B. watches C.watched