— I visited the Purple Mountain Observatory last Sunday.—______ Why didn’t you tell me earlier?
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
What do the neighbors think of Li Lei?They say he is ______ lucky boy.A. a B. an C. the