There _____ to be nobody in the office.
A: happened
B: has
C: existed
D: is
A: happened
B: has
C: existed
D: is
举一反三
- What has happened A: In a post office. B: At an insurance agency. C: On an airplane. D: In a moving company.
- 30.The problem of global warming ______ for decades. A: has been existed B: has existing C: being existed D: has existed
- Listening 4 "Professor’s Office" {$mediaurl} What experience does the man have that may be helpful A: He knows how to operate the grading machine. B: He has answered the telephone in a law office. C: He has used computer programs for office work. D: He has been a work-study student in another office.
- _______ happened _______ he is unfit for the office.
- We cannot leave this tough job to a person（）. A: who nobody has confidence B: in whom nobody has confidence C: for whom nobody has confidence D: who everyone has confidence of