题文
There _________a girl singing next door. Can’t you hear her beautiful voice?
| A．must be | B．mustn’t be |
| C．can be | D．can’t be |
There _________a girl singing next door. Can’t you hear her beautiful voice?
| A．must be | B．mustn’t be |
| C．can be | D．can’t be |
试题篮
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