問題文全文(内容文)：
N.T. Third Edition Stage3 Lesson1-1のKeyPoint例文解説です。

【使用例文】
① We have mathematics in the second period on Mondays.
② Japan is a country surrounded by the sea.
③ We leave for Kyoto on the school trip next October.
④ John and I had lunch at the cafeteria yesterday.
⑤ I am doing research for the next social studies class.
⑥ My brother is taking important examinations next week.
⑦ I will study geography and physics in high school.
⑧ Thomas has already left for school.
⑨ Has he ever been to Canada? –Yes, he has. / No, he hasn’t.
⑩ He has been waiting for a taxi for twenty minutes.
⑪ How long has he been working as a pharmacist?

問題文全文(内容文)：
ニュートレジャー Stage2 3rd Edition Lesson8-1のKeyPoint例文解説です。

問題文全文(内容文)：
アルファベット(A~Z)まで解説していきます。

問題文全文(内容文)：
N.T. SERIES Third Edition Stage1 Lesson 5-1のKey Point解説

問題文全文(内容文)：
次の英文の下線部を複数形に変えて、全文書きなさい。