1. They are going to take part in the green organization -> 2. You should learn harder and harder -> It's time 3. By whom was it built ( câu chủ động ) -> 4. They got their house painted last year ( câu chủ động ) -> 5. I have been doing the gardening since 5am ->

2 câu trả lời

1. They are going to join in the green organization. ( join in= take part in : tham gia)

2. It's time you learnt harder and harder ( It's time + V2)

3. Who built it? : Ai xây nó?

4. Their house was painted last year. 
5. The gardening has been done since 5am. ( has/have been V3 )

$1$. They are going to join in the green organization

$2$. It's time you learned harder and harder

$3$. Who built it?

$4$. They got someone to paint their house last year

$5$. The gardening has been being done since 5 a.m

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