问题
选择题
—What ____ to your brother last weekend?
—Nothing much. [ ]
A. was happened
B. happened
C. did happen
答案
答案：B
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—What ____ to your brother last weekend?
—Nothing much. [ ]
A. was happened
B. happened
C. did happen
答案：B
（ ）
应多饮用很纯净的水，防止有毒物质进入体内