The man called his professor for help because he couldn’t solve the problem by _________.
| A．herself | B．himself | C．yourself | D．themselves |
The question is so difficult that ______ students can answer it.
A. few B. many C. most
Mr. Wang enjoys ______ stamps.
So he does.
A. collects B. collect C. collecting
Peter, can you come downstairs and do me a favor?
Yes, mum. I ______.
A. came B. come C. am coming
ShenzhouⅩwas sent up into space ______ 5:38 p.m. on June 11, 2013.
A. at B. on C. in
Mr. Smith will go back to London tomorrow.
Yes. I will see ______ off at the airport.
A. he B. his C. him