搜题
王老师:19139051760(拨打)
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第1题

The school informed the parents _____ the case immediately. A. in B. to C. of
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第2题

We are ______ the same age. A. about B. of C. with
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第3题

These books date back _______ the 15th century. A. at B. on
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第4题

The police asked students to always be on their ______ when walking to school. A. guard B. attention C. own
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