题目内容

正确答案是（）

A. when
B. once
C. while
D. whereas

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Very few people could understand the lecture the professor delivered because its subject was very __________

A. intfiguing
B. indefinite
C. obscure
D. dubious

After __________ seemed an endless wait, it was her turn to enter the personnel manager's

A. that
B. there
C. what
D. it

正确答案是（）

A. complex
B. comprehensive
C. complementary
D. compensating

正确答案是（）

A. So
B. Since
C. As
D. Thus