We all know that _____ carefully dealt with, the situation will get worse．
A．once B．when
C．if D．unless
—You look rather tired today．
—_____ not to miss the 4：20 flight, I didn’t dare to close my eyes．
A．Having reminded B．Reminded
C．Being reminded D．Reminding
--Have you heard about Apple iPhone 6s?
--Sure．It is a hit these days．I am thinking about getting _____．
A．one B．them
C．that D．it
By law，no party _____ give away the contents of the contract to the third party.
A．may B．can
C．need D．shall
--Ann is in hospital．
--Oh，really? I _____ know．I _____ go and visit her．
A．didn’t：am going to B．don’t；would
C．didn’t：will D．don’t；will
Was it through Mary _____ was working at a high school _____ you got to know Tom?
A．who；whom B．that；which
C．who；that D．that；who
