I have never seen this kind of robot before

=>  Lan said that I had seen this kind of robots before

1. I havebeen learning English for 10 years.

=>He said that he has been studying English for 10 years.

2. There are many grey clouds. It is going to rain

=> My friends said it's going to rain because of gray clouds.

3. The lesson will star in 30 minutes

=> The teacher says the lesson will take place after 30 minutes.

4.  You have to behave politely if you want to stay here

=> She told me that be polite if you want to stay here.
Lời giải đây nhé ! Chúc bạn học giỏi, đạt thành tích cao, ngoan ngoãn nghe lời ông bà cha mẹ và thầy cô. Mình cho bạn biết một chỗ đặt câu hỏi rất hay (https://hoidap247.com) bạn hãy đăng nhập và đặt câu hỏi nhé mình dùng nó để giải bài cho bạn đó nó rất hay mình vừa đặt câu hỏi thì đã có 2 người giải rất nhanh. Có gì thì háy giúp nhau nhé =))) 

1. I havebeen learning English for 10 years.

=>He said that he has been studying English for 10 years.

2. There are many grey clouds. It is going to rain

=> My friends said it's going to rain because of gray clouds.

3. The lesson will star in 30 minutes

=> The teacher says the lesson will take place after 30 minutes.

4.  You have to behave politely if you want to stay here

=> She told me that be polite if you want to stay here.

1.He said that he had been learning English for 10 years.

2. My friends said there were many grey cloads. It was going to rain.

3. The teacher said the lesson would start in 30 minutes.

4. She told me that I had to behave politely if I wanted to stay here.