33.I had to tell the truth, __________?

A. haven't I
B. wouldn't I
C. didn't I
D. shouldn't I

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

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

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

按照句意选择下列词组填入空格内in fact all at once be suitable for all over hand over as if in casereturn to as a result write down

常用易混词辨析与练习（一）rise, raise, liftrise（升上去，起床，站起来）是不及物动词。raise（举起）是及物动词。另外，它还有“提高”、“饲养”、“培养”、“提出”等意思。lift（举起）是及物动词，与raise（举起）同义，但强调从低处提到高处。

sleep, go to bed, go to sleep, fall asleep, be asleep, be sleepysleep（睡着）是不及物动词，表示动作的延续性。be asleep（睡着）是表示延续性状态，与sleep同义。go to bed（上床睡觉）是非延续性动作。go to sleep和asleep（入睡）同义，均表示非延续性动作。be sleepy（困，没有精神）表示一种状态，意思是“有睡意，但没有睡着”，与be asleep不同。