問題文全文(内容文)：
Tell me what you learned from this book.
I have no idea (as to) why the ancient city disappeared completely.
Why the city disappeared is a mystery, so experts are continuing their research.
The question is who ruled this city two thousand years ago.
What do you think the experts will do with the dinosaur fossils?
I think they will preserve them in a museum.
Who do you suppose is appropriate for the leader of our project?
I suppose Michael is.

問題文全文(内容文)：
英訳してみよう！
内向的な人は、一人でいることを楽しむ傾向がある。

練習問題（英訳してみよう）
最近、ほとんどの学生はオンラインで大量の教育的な情報に無料でアクセスできる。しかしながら、彼らはインターネット上でのほとんどの時間をSNSをチェックすることに費やす傾向がある。

問題文全文(内容文)：
You were foolish to play football on such a hot day.
It was careless of them to forget their water bottles.
It is kind of you to help me with my report.
Meg has decided not to stay up late.
She studied hard in order not to fail the math test.
Take care not to catch a cold before the test.

問題文全文(内容文)：
N.T. ENGLISH SERIES Third Edition Stage1 Lesson12-1のKeyPoint例文解説です。

問題文全文(内容文)：
英語の時の流れ「時制」についての説明です。