We have just heard a warning on the radio _____________ a typhoon may be on its way．
A．what B．when C．which D．that
I will spend half of my holiday practicing English and _____________ half learning drawing．
A．another B．the other
C．others 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
