問題文全文(内容文)：
N.T. ENGLISH SERIES Third Edition Stage1 Lesson9-1の解説動画です。be動詞の過去形の導入です。

問題文全文(内容文)：
signaling deviceのsignalingは分詞でしょうか？

問題文全文(内容文)：
母音について誤解している人が非常に多い。

問題文全文(内容文)：
Doctor： How can I help you?
A： My girlfriend fell down the stairs and hurt her knee. She doesn't look good.

ここで、Aの本文中にある「She」は何を指しているか分かりますか？

「She」「He」「It」が持つ様々な意味を解説します。

問題文全文(内容文)：
N.T. SERIES Third Edition Stage3 Lesson2-2 の解説動画です。
can /couldの推量で使われる意味、またcould / was(were)able to の「できた」の違い
will / would の「習慣・意思・性質」の意味、would / used to の違いについても解説します。

Practicing musical instruments can be hard for everyone.
Mike cannot be good at playing the drums. He only started practicing them last week.
One day he could be famous, but the chances are very small.
He could play the guitar when he was on elementary school student.
He was able to find Mary's house easily.
Children will behave like children.
The window won't open.
My brother would often play the trumpet in this room.
I used to like American pop music, but now I prefer K-pop.
There used to be a furniture shop over there, but now it's closed down.