Computers in offices and homes since 1970s．
#101154
A
have been used
B
had been used
C
was
D
has been used
推荐题目
They are living with their parents for the moment because their own house __________.
#101270
A
has been rebuilt
B
is being rebuilt
C
is rebuilt
D
has rebuilt
On Monday morning it usually ________ me an hour drive to work although the actual distance is only 20 miles.
#100589
A
takes
B
is taking
C
took
D
will take
By the time I swa the angry expression on his face, I ______ exactly what I was having to face. But not for a moment _______ I should quit.
#104463
A
had known; I thought
B
have known; had I thought
C
would know; I would think
D
knew; did I think