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。 |