Limits have been set for the number of fish to be caught at one time.
题目
Limits have been set for the number of fish to be caught at one time.
为什么是to be caught? 要用不定式?
答案
因为前面有“for the number of fish ”,这是不定式的复合结构【for sb to do sth---被动式:for sth to be done】
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