A person__a foreign language must be able to use the foreign language,__all about his own

问题描述:

A person__a foreign language must be able to use the foreign language,__all about his own
A) to learn,to forget B)learning,to forget C)to learn ,forgeting D)learning,forgeting

D为什么不是C呢A person(__a foreign language )must be able learning a foreign language 是修饰A person的定语那为什么不能翻译成一个即将要学习外语的人,``````没有to结构做定语的