题文
He was so ______ thought that he didn’t see the pole on the road.
| A．buried in |
| B．careful with |
| C．busy with |
| D．serious about |
推荐试卷
He was so ______ thought that he didn’t see the pole on the road.
| A．buried in |
| B．careful with |
| C．busy with |
| D．serious about |
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