－I don’t think teenagers should drive cars．

－________．They aren’t serious enough．

A．I agree

B．I don’t agree

C．I think

D．I don’t think

－Morning, class!Good luck to all of you in the exam!

－Morning, teacher．________．

A．The same to you．

B．You, too．

C．Thank you．

D．I’m sorry I can’t．

－Daddy, will you come home for supper with us today?

－________, but I might be a little late．

A．I’m busy

B．No problem

C．It’s a pity

D．It’s hard to say

－What’s your math teacher like?

－________．

A．He’s twenty-seven years old

B．He works in our school

C．He’s creative and outgoing

D．He likes physics and biology

－I think it’s going to be a problem．

－Yes, it could be．

－I wonder ________ we can do about it．

A．what

B．how

C．if

D．that

－You were out when I dropped by your house．

－Oh, I ________ for a friend from England at the airport．

A．was waiting

B．had waited

C．am waiting

D．have waited

－Maria is wanted on the telephone．Where is she?

－She ________ the library．You can find her there．

A．has been to

B．has gone to

C．has left

D．will leave

Yuan Longping, one of the greatest scientists in China, ________ as“father of hybrid rice”．

A．is regarded

B．has regarded

C．is regarding

D．regards

－I feel tired and sleepy．

－Why not stop ________?

A．resting

B．breaking

C．to relax

D．to work

－Attention, please．The plane has to be ________ because of the heavy rain．

－Oh, bad luck!We have to wait now．

A．put on

B．put off

C．put up

D．put away