When the old man ______ to walk back to his house, the sun ______ itself behind the mountain.
#100109
A
started; had already hidden
B
was starting; hid
C
had started; had already hidden
D
had started; was hiding
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We must give up the project now. We _____ money.
#101247
A
are running out of
B
will run out of
C
had run out of
D
have run out of
Professor Wang ________in our school till next Sunday．
#102722
A
will have stayed
B
has stayed
C
is staying
D
stayed
Teenagers ____ their health because they play computer games too much.
#104014
A
have damaged
B
are damaging
C
damaged
D
will damage
The first use of atomic weapons was in 1945, and their power ________ increased enormously ever since.
#104766
A
is
B
was
C
has been
D
had been
Hurry up; it is required that we ______ at six.
#102875
A
will arrive
B
arrived
C
arrive
D
would arrive