Some people won't realize the importance of their health ____ they lose it.( )
A.becauseB.afterC.whenD.until
The number of the old people is increasing in China.With the development of China,they _____ better care of in the future.( )
will take
are taken
will be taken
Neither he nor I was playing computer games at this time yesterday.We ______ trees in the neighborhood.( )
were planting
planted
are planting
I saw Jim ______ into that new building just now.
Oh,it's our new library.It ______ to the public for a week.( )
walk; has opened
walk; has been open
walking; has opened
______ shocking news!It is reported that the UK is repeatedly under terror attack.
So it is.We should call on the people all over the world to be against terrorism(恐怖主义).( )
What an
How
What
Look!The man at the school gate _________ be our headmaster.He is always standing there to welcome us every morning.
No,it _______ be him.He is holding a meeting in the office now.( )
must; can't
must; mustn't
can't; mustn't