Why________ you always leave your dirty clothes in the bedroom?
A. need B. must C. can D. shall
“ Have you ever been to Beijing?” “No, but I wish I________.”
A. have B. will C. do D. had
He felt______ duty to work for human rights and progress.
A. it his B. his C. that is a D. it is his
Was it in 1997______he was still at middle school_______ this boy became an expert at computer?
A. that; where B. when; where
C. in which; in which D. when; that
------What do you think made Mary so upset?
-------- _________her new bicycle.
A. As she lost B. Lost C. Losing D. Because of losing
