单项选择题

It was（）he lost his mobile phone that he didn't call you back.

A．for
B．as
C．because
D．since

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Shorthanded（）they were, they beat the enemy.

A．as
B．should
C．that
D．even
单项选择题
The computer（）in the repair shop right now.

A．be repaired
B．is being repaired
C．being repaired
D．repaired
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