请教大全 - 补充033

33.   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

此题答案是B, D错在哪儿？为什么CANNOT BE FORSEEN 优于 ARE NOT FORESEEABLE?

33.   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

此题答案是B, D错在哪儿？为什么CANNOT BE FORSEEN 优于 ARE NOT FORESEEABLE?