By 5:30 this afternoon, Bob……… been at work for eight hours.
A: has
B: will
C: have
D: will have
A: has
B: will
C: have
D: will have
举一反三
- We have to work _____hours ____ day. A: eight; a B: eight; one C: the eighth, a D: the eighth; the
- We（）on it for many hours but we have not yet reached any concinsion. A: work B: have been worked C: have been working D: are working
- The committee (A. has been arguing B. have been arguing) over the problem among themselves for two hours. A: has been arguing B: have been arguing
- How many hours does the woman work every day except the break A: Seven hours. B: Eight hours. C: Nine hours. D: Six hours.
- By the end of the next year, she ___ here for eight years A: is to work B: will work C: will have been working D: is working