问题详情：
Jack, you made a little progress in your writing and reading. But you should pay attention to ______ and ______ .
ening; speaking en; speak
ened; spoke ens; speaks
【回答】
A pay attention to ... 中的to为介词，所以后面跟名词、代词或动名词形式。类似结构有look forward to, can’t help等都要加动名词形式。故选A。
知识点：相似 相近词比较
题型：选择题
