_____, we need to imporve the equipment in our factory.
#94888
A
As it is
B
As it was
C
As it were
D
As it will be
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Hearing the dog banking fiercely, away _______
#94115
A
fleeing the thief
B
was fleeing the thief
C
the thief was fleeing
D
fled the thief
Loulan is believed __________ over by sandstorms gradually from AD200 to AD400.
#92411
A
to cover
B
to be covered
C
to have covered
D
to have been covered