Loulan is believed ____ by sandstorms from AD 200 to AD 400.
#70910
A
to be gradually covered over
B
to have been gradually covered over
C
being gradually covered over
D
having been gradually covered over
推荐题目
Who can ______ me a ball-pen ________?
#81427
A
save; to write
B
borrow; to be written
C
spare; to write with
D
spend; writing with
More new machines will be bought to __________ the old ones.
#66647
A
replace with
B
take place
C
make place for
D
take the place of
Having been married for over 10 years, the couple ____ finally because they quarreled a lot.
#64187
A
broke up
B
broke down
C
broke out
D
broke in
He has proved his courage in the battle.Through tests time and time again, this kind of rope____strong.
#83522
A
was proved
B
has ben turned out
C
turned
D
proved