Question

【题目】The growing speed of a plant is influenced by a number of factors, _____ are beyond our control.

A. most of which B. most of them

C. most of what D. most of that

Answer 1

【答案】A

【解析】句意：植物的生长速度受很多因素的影响，其中的大多数是不受我们控制的。先行词为factors，和从句构成完整的句子应为most of the factors are beyond …，应用引导词which代替factors，故选A。