How much time did you spend the new words in Unit 10?A. to learnB. learningC. learnedD. l

问题补充：

How much time did you spend the new words in Unit 10?

A. to learn

B. learning

C. learned

D. learn

答案：

A. to learn

(答案→)B. learning

C. learned

D. learn

解析：句意：学习十单元的单词你们花了多少时间？根据spend…doing“花费时间做某事”的用法可知，本题应选B。