Ex4.
1. The square in Hoi An is smaller than the square in Hanoi.
⇒ The square in Hanoi is bigger than the square in Hoi An.
2. There are many shops here, so the streets are busy all day.
⇒ Because there are many shops here,the streets are busy all day.
3. No lake in the world is deeper than Lake Baikal.
⇒ Lake Baikal is the deepest lake in the world.
4. There is an art gallery opposite my school gate.
⇒ The art gallery is opposite our school.
5. My brother never goes to school late.
⇒ My brother always goes to school on time.
Ex5.
1. The three roofs of the house are old.
2. Is Bac Giang a mountainous province?
3. Lan cleans the house twice a day.
