— I have got a backache.— That’s not surprising. You ______ in front of that computer too long.
#100916
A
work
B
worked
C
have been working
D
are working
推荐题目
It was the first time that I ___________ the night face to face. 
#101477
A
had seen
B
have seen
C
see
D
seeing
The girl told me that she ___ beaten and she ___telephone the police. 
#101856
A
was; would
B
has been; will
C
had been; would
D
had been; will
He______to several European counties so far.
#103236
A
was
B
has been
C
had been
D
will be