-Where_____they from?-They're from China.A. is B. am C. are
---______ does he go to Guangzhou on business? ---Three or four times a year.
I always go to the lake ____ the aftenoon, but Kate goes there ____ the night of Monday.
Jack _______ goes shopping, because he is ______ busy working.
Helen is my cousin. I often help ________ with ________ homework.
---We’re going to the Great Wall tomorrow. ---_______.