The means as well as other means ________ in the experiment.
发布时间:2021-08-12
A.have been tried
B.has been tried
C.have tried
D.has tried
试卷相关题目
- 1The researcher said a part of the students ________ absent and part of the work ________ not finished.
A.were; was
B.were; were
C.was; was
D.was; were
开始考试点击查看答案 - 2Cattle ________ one cause of the problems which many parts of the world have become deserts.
A.is
B.are
C.has
D.have
开始考试点击查看答案 - 3In that school, ________ of the disabled students are deaf and the rest ________ blind.
A.two-thirds; are
B.two-third; are
C.second-three; is
D.second-threes; is
开始考试点击查看答案 - 4______ information ______ been stored in this floppy disk.
A.A large number of…have
B.A great deal of…has
C.Many a…has
D.Plenty of…have
开始考试点击查看答案 - 5________ of the students are girls.
A.Three fifth
B.Third fifth
C.Three fifths
D.Third fifths
开始考试点击查看答案 - 6Bread and butter ________ my usual breakfast but in this shop ________ sold out.
A.is ;it is
B.is ;they are both
C.are ;they are both
D.are ;it is
开始考试点击查看答案 - 7The battle being over, the wounded ________ sent to the nearest field hospital, and the dead ________ buried.
A.was; was
B.were; were
C.is; is
D.are; are
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A.has
B.have
C.had
D.had had
开始考试点击查看答案 - 9One third of the land _______ covered with ice.
A.are
B.is
C.were
D.have been
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A.were
B.have
C.are
D.is
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