There __________two people waiting for you outside now.( )
A.isB.areC.wasD.were
When going up stairs or down stairs,we need to walk on the right,leaving the left space for the people who ___.( )
hurry up
look around
run away
No matter what problems we meet,we should try to solve them,and even though we fail,teachers and parents___ us.( )
are strict with
are worried about
are proud of
When you're invited to have dinner at home by an American friend,you should be ___ or a little later.It's different from our Chinese custom.( )
on time
on business
on show
If your best friend tells you his secret,it's ___ for you to keep them for him.By doing this,you can win others'trust.( )
special
necessary
possible
Our teachers have been with us for nearly three years ___ we came to junior high school.We should t
hank them for what they have done for us.( )
until
before
since