It as subject

Question 0

การใช้ It+be+N

Answer 0

1) + to-inf It is a pleasure to meet a cheerful person.

2) + for S/N It is a shame for you to have to go through all that trouble.

Question 1

การใช้ It+be+adj

Answer 1

1) +to-inf It is foolish to waste your money.
2) +for S/N,Sth + to-inf It is dangerous for children to play with fire
3) +of S/N + to-inf (ตาม tense) It was very kind of your mom to give us a gift.
It would be stupid of us to refuse the offer

Question 2

(It) He was rude to say that.
I was stupid to forget the ticket.
You are very goodti carry that heavy bag for me
Your farther is very generous to give us all money to spend

Answer 2

It was rude of him to say that.
It was stupid of me to forget the ticket.
It is very good of you to carry….
It is very generous fo your farther…