— 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
By the time a child is five, he _______ hundreds of hours of television.
#103126
A
will watch
B
will have watched
C
had watched
D
is watching
By the end of next year，they ________ the work on the new stadium.
#99754
A
would have completed
B
had completed
C
will have completed
D
have completed
—Bob, you’re absent-minded!—Oh, I’m sorry I ______ attention to you, Miss Shute.
#100566
A
haven’t paid
B
wasn’t paying
C
am not paying
D
won’t pay
----when are you going off for your holiday? ----My plane ______ at 9:20, so I must be at the airport by 8:20.
#99845
A
took off
B
has taken off
C
is taking off
D
would take off
—How time flies. A little boy turns into a young man.—Yes, it won’t be long he from university.
#102482
A
when, will graduate
B
after, graduates
C
since, had graduated
D
before, graduates