It,s too useful______(learn)a foreign languagetongshang

It,s too useful______(learn)a foreign languagetongshang
It,s too useful______(learn)a foreign language
tongshang

It,s too useful______(learn)a foreign languagetongshang
to learn
用动词不定式.

It's too useful__TO LEARN ____(learn)a foreign language.

但最好是：
It‘s QUITE useful_to learn _____(learn)a foreign language可是这样的话不就是TOO。。。TO结构了吗但，It's too useful__TO LEARN ____(learn)a f...

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It's too useful__TO LEARN ____(learn)a foreign language.

但最好是：
It‘s QUITE useful_to learn _____(learn)a foreign language

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