Write the sentences, using the ADJ+to-infinitive structure

=> be adj to V: như thế nào khi làm gì

1. We were delighted to get your letter yesterday

2. It’s not easy to answer these questions

3. Your writing is difficult to read

4. I was surprised to see Paul at the party last night

5. It’s impossible to understand his theory

6. They are ready to start now

${1.}$ We were delighted to get your letter yesterday.

${2.}$ It is not easy to answer these questions.

${3.}$ Your writting is difficult to read.

${4.}$ I was surprised to see Paul at the party last night.

${5.}$ It is impossible to understand his theory.

${6.}$ They are ready to start now.

⇒ S + vbe + Adj + to_V