1 . —I can’t get through to the general manager’s office anyhow.
—The line is busy. Someone________ the telephone.
—The line is busy. Someone________ the telephone.
| A．can use | B．can have used | C．must have used | D．must be using |
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2022-07-06更新
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419次组卷
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3卷引用：天津市西青区杨柳青第一中学2022-2023学年高一下学期第一次适应性测试英语试
2 . —— I can’t get through to the general manager’s office anyhow.
—— The line is busy. Someone _____ the telephone.
—— The line is busy. Someone _____ the telephone.
| A．must use | B．uses | C．must have been using | D．must be using |
您最近一年使用：0次
