_______ he lives in a rich family, he started from the lowest position as an ordinary worker to make his living.
A．While B．Unless C．As D．Since
The big company should be ready to ______ many talents who can often _____ a new idea for increasing sales.
A．take in; come across B．take on; come on
C．take on; come up with D．take in; come up with
Because of the bad management, this restaurant was not _______ it was 10 years ago.
A．half as good as what B．as half good as that
C．as good as half what D．half as good as that
We can never expect ______ bluer sky unless we stop ______ industrial waste going into _____ atmosphere.
A．a; the; the B．the; the; the C．a; /; the D．the; /; /
I told her we weren’t going to be friends any more because she couldn’t ________ .
A．keep her word B．have her word C．keep her words D．have her words
Research has been limited to ____ production profits, rather than ____ that GM foods are safe.
A．increasing; make sure B．increasing; making sure
C．increase; make sure D．increase; making sure
