(2012·南京高二检测) Some people are worrying about the possibility _______ mobile phones could be responsible for a range of illnesses, from rashes (皮疹) to brain tumors.
#30086
A
that
B
why
C
how
D
whether
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The value of life lies not in many days we live, but in ____ use we make of them.
#31891
A
that; which
B
what; that
C
how; what
D
what; how
________ seems to be a strong competition in China for senior high students to enter universities does exist in other countries as well.
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A
It
B
Which
C
What
D
That
Tom was about to close the window__________his attention was eaught by a bird.
#34748
A
when
B
if
C
and
D
till
________ he found the idea interesting, it was too difficult to be of practical use.
#29985
A
While
B
Once
C
If
D
Until