Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
#59036
A
which
B
what
C
that
D
when
推荐题目
Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.
#4678
A
producing
B
having been produced
C
to be produced
D
produced
I know nothing about the match ________ I read in the newspaper.
#4820
A
besides
B
expect
C
except that
D
except what
.Straight away I went to buy the tickets, but there were_______left for the next public holiday.
#4748
A
nothing
B
none
C
neither
D
no one
It’s strange that she ____have failed to see her own shortcomings.
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A
would
B
should
C
could
D
might
--- The patient looks much better. is it that has made him he is today?--- Perhaps the special medicine and his family’s patient care.
#4981
A
What; that
B
That; that
C
What; what
D
What; which