bees, bee's, bees'; are, is, would be It is estimated that nativ

2024-08-22 10:57:12
英语语法(00831)

bees, bee's, bees'; are, is, would be
It is estimated that native ______pollination of flower and vegetable crops ______worth 1.2 billion dollars year.
【正确答案】：bees’, is

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