Mr.Wang, can I go to play football with my classmates as soon as school is over?
______We have to prepare for the coming Art Festival together.( )
A.Why not?B.I hope so.
C.I'm afraid not.D.Of course.
Is the woman Miss Zhao?
It ______ be her.She has gone to Qingdao for a meeting.( )
can't
needn't
must
may
New energy cars have been ______ to cut down air pollution.( )
discovered
found
invented
refused
He tried many ways to solve the problem.But ______ of them worked.( )
neither
none
all
both
We are going to have a party ______ the evening of June 30th.( )
on
in
at
for
I'm sorry I took your card by mistake,but where is ______?( )
hers
theirs
yours
mine