—How long ____ you ____ in Singapore?
—For just the weekend． I’ll be back next Monday morning．
A．have; stayed B． are; staying C．did; stay D．do; stay
Every possible means ___ to prevent the air pollution, but the sky is still not clear．
A．is used B．are used C．has been used D．have been used
A friend of ______ went to the railway station to see ______．
A．Rebecca；her off B．Rebecca； off her
C．Rebecca’s； her off D．Rebecca’s； off her
Do you know when Mr Brown_______ ? When he_______ , please let me know.
A. will come; will come B. comes; is coming
C. is coming; comes D. comes; will come
_____ get a better score, she has been studying hard all day.
A. So as to B. In order to C. So that D. In order that
He said that his bike _____ stolen and he _____ telephone the police.
A. was; would have to B. has; will have to
C. has been; will have got to D. had been; would have to
