—Tom says he is too tired to go on.
—He can’t be.He ____for an hour.
A.just worked |
B.has only been working |
C.has just worked |
D.had only been working |
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—Tom says he is too tired to go on.
—He can’t be.He ____for an hour.
A.just worked |
B.has only been working |
C.has just worked |
D.had only been working |