Computers in offices and homes since 1970s．
#99298
A
was
B
had been used
C
have been used
D
has been used
推荐题目
The girl ______ in America for years． After graduation, she returned home, quite at a loss during her hunt for a job．
#99297
A
was studied
B
has been studied
C
studied
D
was studying
— What were you up to when your parents came in? — I＿＿for a while and＿＿some reading.
#104407
A
was playing； was going to do
B
played； did
C
had played； was going to do
D
had played； did
Looking at old photographs of yourself on social websites can improve your mood, and this finding _______ previous research, which suggested otherwise.
#99250
A
consumes
B
contradicts
C
conducts
D
congratulates
---- Flight 551 for Dallas ________. I must be off now. ------Have a pleasant trip then.
#102346
A
is being announced
B
has announced
C
was announcing
D
had been announced
When I met him the other day，it was the first time we________each other since we were at school.
#99177
A
saw
B
have seen
C
had seen
D
were seeing