_______ is known to us all is that Madame Curie, _______ life was devoted to science, won
the Nobel Prize twice.
| A．As; whom | B．What; whose | C．It; whom | D．That; whose |
I will spend half of my holiday practicing English and _____________ half learning drawing．
| A．another | B．the other | C．other’s | D．other |
I ______________ have passed my examination easily，but I made too many stupid mistakes．
| A．must | B．will | C．shall | D．could |
Mom，don’t you think it's OK to play once in a while ____________ it doesn’t affect my studies?
| A．even if | B．unless | C．so that | D．as long as |
— Is everyone here?
— Not yet．Look，there ______________ the rest of our guests!
| A．come | B．comes | C．is coming | D．are coming |
The boy was so tired that he fell asleep _____________ his mother could take off his clothes．
| A．before | B．after | C．while | D．where |