摘要： The line is busy; someone it. A. must use B. must be using C. need be using D. can be using
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—— I can’t get through to the general manager’s office anyhow.
—— The line is busy. Someone＿＿＿＿＿the telephone.
A. must use B. uses C. must have been using D. must be using
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—— I can’t get through to the general manager’s office anyhow.
—— The line is busy. Someone＿＿＿＿＿the telephone.
A. must use B. uses C. must have been using D. must be using
查看习题详情和答案>>---- I can’t get through to the general manager’s office anyhow.
---- The line is busy. Someone ___________ the telephone.
| A．can have used | B．can use |
| C．must have used | D．must be using |
—— I can’t get through to the general manager’s office anyhow.
—— The line is busy. Someone _____ the telephone.
|
A．must use |
B．uses |
C．must have been using |
D．must be using |
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