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
She ________ into the thick forest alone on such a dark night.
#64044
A
dares not go
B
dares not to go
C
dare not to go
D
doesn't dare to go
The famous actor keeps fit by ________ for an hour every morning.
#64341
A
sticking out
B
standing out
C
making out
D
working out