According to the rule,used batteries _______ be dropped in the red bin for harmful wastes.( )
must
need
can
may
﹣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
What do you think of talk shows?
. They're boring.( )
I can't stand them
I love them
I'm not sure
No problem