Some people waste food，________other people haven’t got enough to eat.
A．when B．until C．since D．while
Look! The houses _________.
A. is being built B. are building C. being built D. are being built
The stamps were ________ according to their styles and features.
A. found out B. sorted out C. put out D. taken out
I can’t give my son the leading position. ______, he is too young; secondly, I want Mr. Smith to have the job.
A. After all B. First of all C. Above all D. In all
With no one to________ in such a frightening situation，she felt very helpless.
A．turn to B．turn on C．turn off D．turn over
We are looking forward to________a chance to watch the opening ceremony of the London 2012 Olympic Games.
A．give B．be given C．being given D．giving
