Are you willing to live on Mars one day?
__________. It sounds interesting, but it still worries me.( )
A.I'm not sureB.Sure, I will
C.That's all rightD.I hope so
The group had to wait ______ after 12to check in at the hotel.( )
from
until
for
at
What should we do to protect the fish in the river?
We_______ throw rubbish into the river.( )
need
needn't
must
mustn't
Tom was not listening carefully,so he failed to hear .( )
what the teacher said
how the teacher said
what did the teacher say
how did the teacher say
I think that you need to eat sweets and more fruit.( )
few
fewer
little
less
We talked about the problem and Tim ____ doing some research first.( )
finished
enjoyed
suggested
practiced