_________(43)
A.task
B.necessity
C.reason
D.duty

_________(45)
A.comes
B.turns
C.concerns
D.refers

_________(46)
A.of
B.opposite
C.next to
D.across

A university education is of course important but it is essential that all employees undergo a period of intensive ________.
A.training
B.concentration
C.preparation
D.learning

- Tom: “Oh, I have to leave. Bye.” - Bill: “___________________”
A.Bye. Nice to meet you too.
B.Good day!
C.Good job! See you later.
D.Please, don’t move!

I realized _______ that he was a thief.
A.eventually
B.sooner or later
C.at the beginning
D.all along

Children shouldn't be ______ to adult.
A.respected
B.disrespected
C.disrespectful
D.unrespectful

Designers are experimenting with a new material ________ flexibly with lightness.
A.combines
B.combination of
C.combining
D.is combining

This room ________ since the last time I was here.
A.has painted
B.has been painted
C.painted
D.had been painted

__________, 70 percent alcohol is more effective than 100 percent alcohol.
A.How an antiseptic is used
B.An antiseptic used
C.When used as an antiseptic
D.An antiseptic when used