The boy was very tired_______ he went to bed early.
| A．so | B．because | C．when | D．before |
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—What’s in it?
—________________________
A.Thank you. B.Good idea. C.8 pencils and 10 sharpeners.
The boy was very tired_______ he went to bed early.
| A．so | B．because | C．when | D．before |
—What’s in it?
—________________________
A.Thank you. B.Good idea. C.8 pencils and 10 sharpeners.
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