-- I’m exhausted. I _____ on a project day and night.-- You’d better have several days off after finishing it. Otherwise you might break down.
#100475
A
worked
B
have worked
C
work
D
have been working
推荐题目
---Let’s back up. Where was I?---You ___________________about the trip to South Africa.
#101075
A
were talking
B
talked
C
are talking
D
would talk
I believe that those mountains ________ with trees in a few years’ time.
#102710
A
are covered
B
will be covered
C
are covering
D
will cover
(2013·江苏，21)Generally，students' inner motivation with high expectations from others________essential to their development.
#99734
A
is
B
are
C
was
D
were
—Is Tom still smoking? —No．By next Saturday he _____________ for a whole month without smoking a single cigarette.
#99237
A
will go
B
will have gone
C
goes
D
has been going
----This returned Chinese scholar has become one of the top experts in this field.----Yes,I know him very well.He____in Africa with animals for eight years.
#104192
A
has worke
B
had worked
C
worked
D
has been working