—Will you take the sports shoes?
—Well，I'm thinking ________ it is really necessary.The old pair is still in good condition.
A. when B. why C. how D. whether
The children have been waiting for half an hour and they are getting________.
A. unpopular B. comfortable
C. impatient D. careless
I don't know how to write the report so I will go to Mr Brown's office to________ advice.
A. ask for B. hope for
C. think of D. find out
—Oh，Mum，I simply like my new bike.
—Look after it________ it will last long.
A. since B. even though
C. because D. so that
I can't believe it! ________ a little boy knows________ much about space.
A. So；such B. Such；so
C. Such；such D. So；so
Our country has a problem with its air pollution.________must be done!
A. Everything B. Something
C. Anything D. Nothing
