It is believed to _____ over by sandstorms from AD 200 to AD 400.
A.gradually cover
B.be gradually being covered
C.have been gradually covered
D.be gradually covered
试卷相关题目
- 1 Eugene's never willing to alter any of his opinions.It's no use ________ with him.
A.to argue
B.argued
C.arguing
D.having argued
开始考试点击查看答案 - 2The last one ________pays the meal.
A.arrived
B.arrives
C.to arrive
D.arriving
开始考试点击查看答案 - 3Her ambition is _____ part of the national team for the next Paralympic Games.
A.of becoming
B.becoming
C.to become
D.that become
开始考试点击查看答案 - 4Visitors are not permitted ________ the park after dark, because of the lack of lighting.
A.to enter
B.entering
C.to enter in
D.entering in
开始考试点击查看答案 - 5After starting work, Cao spent his evenings _____ in his books and was eventually admitted to a secondary technical school.
A.burying
B.buried
C.being buried
D.having buried
开始考试点击查看答案 - 6________ on ten years of observation and study, Professor Wang announced that everyone dreams every night,whether they realize it or not.
A.Basing
B.Based
C.Been based
D.Having based
开始考试点击查看答案 - 7—Have all the mysteries been cleared up? —Almost.But ________ only one question ________.(2012·黑龙江哈三中月考)
A.there remains; answered
B.it remains; to be answered
C.there remains; to be answered
D.it remains; answered
开始考试点击查看答案 - 8 He caught the train with a few minutes _______.
A.spared
B.sparing
C.to spare
D.spare
开始考试点击查看答案 - 9At the age of 29, Dave was a worker, _______ in a small apartment near Boston and ______ what to do about his future.
A.living; wondering
B.lived; wondering
C.lived; wondered
D.living; wondered
开始考试点击查看答案 - 10You are asked to attend the meeting ______ in the hall this weekend.
A.being held
B.to be held
C.held
D.holding
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