---Excuse me,sir.This is a non-smoking room. ---Oh,sorry.I the sign.
Although he failed this time, he didn’t give up and _____ studying hard.
---- Do you know the man ________ visited the Singapore in February?----Yes. He is Mr Li. He said it was his _______ visit to the United States.A. who; fifth B. that; five D. /; five D. which; fifth
---- Could you please tell me _______?---- Yes. They are playing in the park.
There goes the bell. Hurry up, _______ you’ll be late for class.
---- Look! A man is cutting a tree on the moon.----It ______ be true. The teacher said there is no air on the moon.