9. A. ask

10. B. natural 

1. My house is bigger than your house

. =>Your house …is smaller than mine………..

2. The black car is cheaper than the red one

The red car …is more expensive than the black one………

3. We will plant more trees. The air will be fresher.

If .....we plant more trees, the air will be fresher.............

4. We will use fewer cars. We will reduce pollution

If ......we use fewer cars, we will reduce pollution........................

5. We cycle to school every day. We keep fitter.

If ......... we cycle to school everyday, we will keep fitter......................

CHÚC BN HỌC TỐT!NHỚ VOTE 5* VÀ CTLHN CHO MIK NHOA!

9. A. ask B. plastic C. back D. grandparents

10. A. tomato B. natural C. bath D. garden

1. My house is bigger than your house. =>Your house …is smaller…………………………………………….. 2. The black car is cheaper than the red one The red car …………is the most expensive than your cat…………………………………………… 3. We will plant more trees. The air will be fresher. If ...........we plants some tree,the air will be fresher.................... 4. We will use fewer cars. We will reduce pollution If ................................................................we use fewer car, we will reduce pollution........................................................................... 5.We cycle to school every day. We keep fitter. If .............................we cycle to scholl, we will keep fitter.cho minhf xin ctlhn nha