—Must we keep the window _______ all the time?—No, you don’t have to.A.opening B.opened C. open
Whenever you meet with difficulties, you can ask the policeman ____help.
Samaranch, who is old friend of Chinese people, died on April 21, 2010.
Julia is very clever.In fact,I doubt whether anyone in the class has_______ IQ.
—Could you tell me_________? —He is in the library.
—Why don’t we take a little break? —Didn’t we just have_________?