If all business goes paperless,at least one million tons of paper a year.( )
A.are savingB.will be saved
C.were saved
- Is that man your friend Tom?
- That man ________ be him,because he has gone to Canada.( )
can't
mustn't
needn't
had better not
- English is difficult ________ at the beginning.
- Yes,but if you keep ________ ,you can make progress.( )
to be learned;trying
to learn;trying
to be learned;to try
to learn;to try
Look!Julia as well as her sisters ________ a kite on the playground.( )
fly
flies
is flying
are flying
- I am worrying about our final exam these days.
- There is nothing to worry about ________ you work hard.( )
until
so that
as far as
as long as
In the past,people didn't know that the earth ________ around the sun.( )
will move
moved
would move
moves