There is someone knocking at the door.
It must be the repairman. I ______ him to come to fix our fridge two hours ago.( )
call
have called
called
Do you want to be healthy?______.Smiling can help you stay healthy.( )
Smile
Smiling
Smiles
Smiled
﹣I want to borrow the book,but I don't know how long it may ______.
﹣For two weeks.( )
keep
be borrowed
borrow
be kept
I hope everyone can care about ______ the environment and stop ______ things.( )
protecting; wasting
protecting; to waste
protect; wasting
protect; to waste
﹣﹣George,how can you prove(证明)the earth is round?
﹣﹣I can't,sir._______,I never said it was.( )
Except
Unless
Besides
Including
Teachers always tell us to try to be _______ honest student today and _______ useful man tomorrow.( )
a; an
an; a
an; an
a; a