A person__a foreign language must be able to use the foreign
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谢谢
答案B learning是后面是个省略的定语从句,其实整句话是"a person who is learning a foreigh language...“ 第二个横线是接be able to...其后面接不定式to use,自然,第二个横线后的all about是承接be able to的动词不定式,因此是to forget...