— is your toy car?—It’s under the desk.
---What are you doing? ---- I am _____ a letter.A.sending B. writing C.Both A and B
What is ____ envelope?A. a B.an C ./
We put the address on _____ right.A.a B.an C.the
What Toms father do? A. do B. does C. doing
Can Mary Chinese? A. speak B. speaks C. speaking