Tom used to come and visit me a lot on his business trip between Hong kong and ____was then Beijing A, that B .which C. where D.what
President Obama has two daughters, _____ able to fit in well with their citizens.
He is ________that all of us like him very much.
I was really anxious about you. You____ home without a word.
Tom and Jack are both very clever. ________, Tom is _______ Jack.
--- Please _______ us in the discussion. --- I’d like to, but I’m _______ busy at present.