Choose the best answer

giải thích vì sao chọn
----- Nội dung dịch tự động từ ảnh -----
I'm only 14; therefore,
ahead of me. I've been......
don't think there will be........
... I'm lucky I'll have another 70 years
about the future. Personally, I
.........cars and robots.
the green
Everything will be very green. In fact, my city just.....
bin programme. I think we'll increase our solar and wind energy. Cars will run off
very little gas. And 80% of appliances will be......
even farm skyscrapers in the middle of cities.
safe. Perhaps
1. A. when
B. if
C. while
D.
what
2. A. think
B. thought
C. to think
D.
thinking
3. A. flown
B. flying
C. train
D.
under
4. A. started
starting
B. have started
C. start
D.
5. A. environmental
B. environmentalist
C. environment
D.
environmentally