－How long do you think it will be ________ China sends a manned spaceship to the moon?

－Perhaps two or three years．

A．when

B．until

C．that

D．before

I just wonder ________ that makes him so excited．

A．why it does

B．what he does

C．how it is

D．what it is

________, Carolina couldn't get the door open．

A．Try as she might

B．As she might try

C．She might as try

D．Might as she try

As far as I am concerned, education is about learning and the more you learn, ________．

A．the more for life are you equipped

B．the more equipped for life you are

C．the more life you are equipped for

D．you are equipped the more for life

You should try to get a good night's sleep, ________ much work you have to do．

A．however

B．no matter

C．although

D．whatever

Only after my friend came ________．

A．did the computer repair

B．he repaired the computer

C．was the computer repaired

D．the computer was repaired

－I reminded you not to forget the appointment．

－________．

A．So you did

B．So I do not

C．So did you

D．So do I

________ about wild plants that they decided to make a trip to Madagascar for further research．

A．So curious the couple was

B．So curious were the couple

C．How curious the couple were

D．The couple was such curious

Mary never does any reading in the evening, ________．

A．so does John．

B．John does too

C．John doesn't too

D．nor does John

Maybe you have been to many countries, but nowhere else ________ such a beautiful palace．

A．can you find

B．you could find

C．you can find

D．could you find