大全870：指代问题

asasasas1

To maintain a high demand for their product, the manufacturers first took over the marketing and sales functions previously performed by outside agents; next, they began changing their advertising campaigns monthly to keep pace with the rapid changes in consumers’ lives.

(A) they began changing

(B) this began changing

(C) the former began changing

(D) to begin changing（A）

(E) to change

这里的they没有指代歧义的问题吗？我选了C，虽然读起来很别扭，但是为了避免指代不清，我还是选了它。

mary1

To maintain... , FIRST..., NEXT... 表明后面的主语与"To maintain"的主语一致.感觉连"they"都可省略.

bnbf

next之前是分号，所以后面是个独立的句子，不能省略主语；如果agents,they则会引起指代歧义，在这里they优先指代前句的主语。