Marx's works with Engels' and you'll find many differencesA. ComparingB. CompareC. To c

问题补充：

Marxs works with Engels, and youll find many differences．

A. Comparing

B. Compare

C. To compare

D. If you compare

答案：

A. Comparing

(答案→)B. Compare

C. To compare

D. If you compare

解析：句意,比较马克思和恩格斯的著作，你会发现很多不同。and连接两个并列句，所以and之前的句子应使用祈使句，故选B.