.Three-fourths of the surface of the earth_________sea.
#103355
A
is
B
are
C
were
D
has been
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The old woman who in the deserted house alone for ten years has been settled in a nursing home now.
#102477
A
lived
B
has lived
C
had lived
D
has been living
--How did she get infected? --She ________the virus without any protection.
#100265
A
exposed to
B
had been exposed to
C
had exposed to
D
was exposed to
—That must have been a long trip.—Yeah, it________us a whole week to get there.
#101500
A
takes
B
has taken
C
took
D
was taking
—I counted sheep, I drank milk and I tried everything, but nothing helped. —It seems you _____ too much recently. Try some sleeping pills.
#99969
A
worked
B
work
C
had worked
D
have been working
The pen well, so it ___ well.
#101517
A
is written, is sold
B
is writing, is selling
C
is written, sells
D
writes, sells