He playing basketball. A. am B. is C. are
Wow!It’s long.A.so B. no C. to
What this?A.am B. is C. are
I see elephants the zoo.A.on B. to C. in
— this?—It’s a dog.A.What B. What’s C. How’s
选出不同类的一项。A.taxi B.bus C.zoo