B1

1, he/will/get/cup/coffee/next morning

=>He will get coffee next morning

2,the teacher/will/not punish/that student

=>The teacher will not punish that student

3,If/he/not eat/breakfasthe/be/hungry

=>. If he doesn't eat breakfast, he will be hungry.

4,we/can/reuse/bottles/cans

=>We can reuse bottle and cans

5,we/should/not throw/rubbish/the/street

=>We shouldn't throw rubbish on the street

B2:

My dream house is a UFO house above a forest with mountain range and clouds surroundings. There will have 6 large rooms. In each rooms, it will have a super smart TV, a super smart car ,high-tech robot Super smart TV help me surf the Internet and watch video online. Hi-tech robots do the household chores and take care of the baby.

B3:

1 walking to school will help reduce air pollution
2 my sister hasn't left home for school yet
3 amsterdam is one of the most peaceful cities in the world

4 Because the film is late, I will wait to watch it.
5 my father first visited da lat in 2010
6 if the weather is good ,I will go camping with classmates