Encouraged by my science teacher, I set about my studies on developing my product, _____I hope I will succeed in applying for a patent（专利）.
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with whom
B
to whom
C
through which
D
for which
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Windows 7 was created in 2009, many computer lovers were interested and excited.
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when
B
where
C
why
D
which
Teaching is a difficult job ______ requires great skill and patience．
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A
which
B
where
C
who
D
why
Raising children is said to be a job _______ parents receive the least formal training.
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in which
B
for which
C
where
D
to what
BrainPOP is an educational program consisting of brief animated videos _____ a man named Tim and his robot friend Moby discuss various subjects.
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A
in which
B
which
C
as
D
in that