—Can a person enjoy the pleasure from his work?—________ he can have his interests and the work combined.
#30245
A
Although
B
Since
C
While
D
Unless
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________one scientist has pointed out, children’s skulls are not fully developed.
#34231
A
That
B
As
C
Which
D
What
Mary was much kinder to Jack than she was to the others, , of course, made all the others upset.
#32932
A
who
B
which
C
what
D
that
Most volunteers are from universities, _________ it is not uncommon to see middle and primary school students too.
#30378
A
though
B
however
C
since
D
even if
______ more and more people may refer to the Internet for up-to-minute news, the newspaper will not disappear.
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A
When
B
While
C
Since
D
As
