35.The boy found a place in the old building__________he used as his first laboratory.
A. which
B. where
C. in which
D. the same
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36.Make a mark__________you have an question.
A. what
B. that
C. where
D. why
38.The need__________foreign languages is becoming greater and greater.
A. to learn
B. learning
C. to be learned
D. being learned
39.The rest of the novel__________very interesting.
A. were
B. are
C. is
D. be
40.Only when the new bridge was completed, __________return home for a short rest.
A. could he to
B. he could to
C. he was able
D. was he able to
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