34.__________is still unknown.
A. How he could break into the bank
B. How he was able to break into the bank
C. How he dare to break into the bank
D. How dared he break into the bank
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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
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