11.In the future , robots will be able to do all our housework

→→ Thì TLĐ ( ĐT Tobe ) : S + will be + adj / n

→→ Đặc điểm nhận dạng : In the future

22.I couldn't speak until I was three years old

→→ ĐT đi sau couldn't vẫn giữ nguyên

→→ Thì QKĐ ( ĐT Tobe ) : S + was / were + adj / n

33.Will robots be able to talk to us in 2030 ?

→→ Thì TLĐ ( ĐT Tobe ) : Will + S + be + adj / n ?

→→ in 2030 == Tương lai

44.If the water is polluted , fish will die

55.If you walk to school , you will help reduce the air pollution

→→ CĐK Loại 1 ( 4,54,5 ) :

−- If - clause : Thì HTĐ : S + Vs / es / không s , es

−- Main - clause : Thì TLĐ : S + will + V

2. I couldn't speak until I was three years old.

3. Will robots be able to talk to us in 2030?

4. If the water is polluted, fish will die badly.

5. If you  walk to school, you will help reduce the air pollution.