Although the causes of cancer ________, we do not yet have any practical way to prevent it
发布时间:2021-08-03
A.are being uncovered
B.have been uncovering
C.are uncovering
D.have uncovered
试卷相关题目
- 1The people had to _______ the new rulers when they lost the war.
A.take to
B.cater to
C.submit to
D.lead to
开始考试点击查看答案 - 2______ unemployment and crime are high, it can be assumed that the latter is due to the former.
A.Before
B.Where
C.Unless
D.Until
开始考试点击查看答案 - 3Many friends sent me e-mail to ________ me on the birth of my son
A.celebrate
B.reward
C.express
D.congratulate
开始考试点击查看答案 - 4The classroom is big enough _______ , but we'll have to move if we have more students
A.for the moment
B.on the moment
C.in a moment
D.for a moment
开始考试点击查看答案 - 5There is a(an) ______ that more graduates choose teaching as their permanent careers.
A.direction
B.attraction
C.tendency
D.attempt
开始考试点击查看答案 - 6It is time that the government__________measures to protect the rare birds and animals.
A.takes
B.took
C.has taken
D.taking
开始考试点击查看答案 - 7People have always been curious ______ how living things on the earth exactly began.
A.in
B.at
C.of
D.about
开始考试点击查看答案 - 8When we reached the stadium in a rush, the newly-elected major ____ his speech and the performance _______.
A.have finished ; began
B.had just finished; was about to begin
C.had just finished; had begun
D.just finished; began
开始考试点击查看答案 - 9I'd rather______ rudely to her yesterday.
A.you not speak
B.your not speaking
C.you didn't speak
D.you hadn't spoken
开始考试点击查看答案 - 10It was so dark in the theatre that I could hardly ________ my friend
A.turn out
B.bring out
C.call out
D.pick out
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