II.
1. B recycle [v] tái chế
2. C I'm sorry, I don't know
3. A Why
4. B less
5. D dirty
6. C do
7. C an
8. A because
9. D Don't litter
10. B live
might + Vnt
III
a. Don't go - is raining
b. watched
c. Do they often
d. speak
I.
1. A will
2. C dirty
3. B and
4. B of
5. C polluted
II.
1. In amazing new houses.
2. We will use the sun or the wind
3. No, we won't
4. Robots will
5. We can surf the internet and order food from the market.
I.
1. Is badminton an inexpensive sport
2. We have never traveled by airplane
3. We should use reusable bags instead of plastic ones
4. If the soil is polluted, the plants will not grow well.
5. Yesterday we visited the historic monument.
II.
1. reading books
2. far from the school, but we don't
3. have robots to do their housework in the future
4. in Ha Noi is larger than the west lake
5. living here fifteen years ago