問題文全文(内容文)：
（　）内を埋めてください

She has not come here yet. I am afraid she (　) her way.
① may be lost
② may have lost
③ may be having lost
④ may have been lost


I hurt my back. I (　) not have carried that heavy box upstairs.
① must
② can
③ might
④ should

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.

問題文全文(内容文)：
英語が苦手な人のための英語の基礎の基礎「英文法の品詞」についての説明です。

問題文全文(内容文)：
『富士山構文』確認！
画に気を取られないように！

問題文全文(内容文)：
英語力を確認するために、以下の問題に挑戦してみましょう！
(1問目：空欄補充、2問目：正誤)

My uncle doesn't smoke at all, but he （　） a heavy smoker.
1. used to be　2. was used to be　3. would be　4. would have been

If you learn ①from a bitter experience, you change how you behave so that it does not happen again ②or so that, if it ③will happen again, you can deal ④with it better.