T-9Q41. could not be seen 和 unforseeable
T-9-Q41.987-830
The spraying of pesticides can be carefully planned, but accidents, weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated.
A.weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had
B.weather conditions that cannot be foreseen, and pilot errors often cause much larger deposits of spray than
C.unforeseeable weather conditions, and pilot errors are the cause of much larger deposits of spray than they had
D.weather conditions that are not foreseeable, and pilot errors often cause much larger deposits of spray than
E.unforeseeable weather conditions, and pilot errors often cause much larger deposits of spray than they had
这题我认为选d。
答案是b 。
但是我记得很清楚 cannot be done 是错误的表达，
can 表达主观，能动。be done 被动 。绝对不能搭配。
prep中有一题，选项为 unseeable，不是cannot be seen，哪一题我想不起来了。
谁能帮帮忙。谢谢
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