Not only learn a foreign language but also master it well.A. must we ; we must B. must w

问题补充：

Not only learn a foreign language, but also master it well.

A. must we ; we must

B. must we ; must we

C. we must ;’ we must

D. we must ; must we

答案：

(答案→)A. must we ; we must

B. must we ; must we

C. we must ;’ we must

D. we must ; must we

解析：句意：我们不仅必须学习一门外语，而且我们必须掌握好它。Not only放在句首，句子用部分倒装，but also放在句首，句子不倒装，所以选A.