［it］
It is ten o'clock. / The time is ten o'clock.
It is cloudy. / The weather is cloudy.
It is about three miles. / The distance is about three miles.
［現在進行形］
She is sleeping in bed.
John was eating lunch at that time.
［受動態］
This book was written by Mr. Brown.
This sneaker was designed by Kei in 2000.
The book was published three weeks ago.
English is spoken in Australia.
I was given a light smart watch by my father.
A light smart watch was given to me by my father.
［that］
I know the PIN number.
He doesn't know that I know the PIN number.
The problem is that he doesn't know that I know the PIN number.
It is said that he was hospitalized.
He is said to be hospitalized.
It is believed that he was rich.
He is believed to have been rich.
It is thought that Michael Jordan was the best basketball player.
Michael Jordan is thought to have been the best basketball player.
It seems that she is very busy today.
She seems to be very busy today.
［感情表現］
His lecture is monotonous and will disappoint us.
Her dishes didn't satisfy me because she loves spicy food.
He tried to explain why the subject interested him.
Traffic jams frustrated me.
Discontinuation of her research disappointed me.
Cancellation of the contract surprised me.
文法
#04 天気・時間・距離で使われる it（ダミーの it）
#05 現在進行形
#06 受動態
#07 仮S真S（形式主語構文）
#08 感情表現
