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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 (E) to change
答案是A,可是这里的they不会指代不清么?前面提到的复数名词有两个,manufacturers和agents 我选的是C
请各位大牛指教,拜谢~ |
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