1. The west lake is the largest in Ha Noi.

-> No lake in Ha Noi is as large as the west lake.

2. They have lived here for 15 years.

-> It's 15 years since they lived here.

3. Are there 60 teachers in your school?

-> Does your school have 60 teachers?

4. She likes to live in the Countryside.

-> She enjoys living in the Countryside.

-> She is interested in living in the Countryside. ( be interested in = be keen on = be fond of )

5. Our energy will soon end because we don't try to save it.

-> Our energy would soon end if we didn't try to save it.

1. No lake in Ha Noi is as large as the west lake.

2. It's 15 years since they lived here.

3. Does your school have 60 teachers?

4. She enjoys living in the Countryside.

5. Our energy would soon end if we didn't try to save it.