题文
A notice was placed by the river bank warning people to__________ the thin ice.
| A.keep up |
| B.keep back |
| C.keep away |
| D.keep off |
推荐试卷
A notice was placed by the river bank warning people to__________ the thin ice.
| A.keep up |
| B.keep back |
| C.keep away |
| D.keep off |
试题篮
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