Question

1.i think you should recycle these plastic  carrier bags
--> If i ..........................................
2.people speak english and french in Canada
-->english and french ...............................
3. this morning , i ate bread then i went to school 
-->before i went .................................
4 . lan was ill , so she didn't go to school this morning
-->because ......................
5.A storm destroved roads in our village
-->Roads.................................................
6.people are not aware of keeping environment clean , they throw garbage in the streets
--->If.............................................................
7.there was a loud noise next to my door last night ,so i couldn't sleep
----->because......................................................
8.the storm destroyed many houses in this village last week
---->many houses................................................
9. we use water carefully ,we have fresh water
-->If...........................................
10.David had gone home before we arrived 
-->after......................
11. although he was ill. he went to school yesterday
-->despite.......................
12.i am not you , but i think you should recycle these plastic carrier bags
-->If ..............................
13.this morning , i ate bread then i went to school
-->before i went.......................
14.people destroyed forest , so there is a lot of flood now
-->If.................................

Answer 1

1. I think you should recycle these plastic carrier bags
--> If I were you, I would recycle these plastic carrier bags.
2. People speak English and French in Canada
--> English and French are spoken in Canada.
3. This morning, I ate bread then I went to school 
--> Before I went to school this morning, I had eaten bread.
4. Lan was ill, so she didn't go to school this morning
--> Because Lan was ill, she didn't go to school this morning. ​

5. A storm destroved roads in our village
--> Roads in our village were destroved a storm.
6. People are not aware of keeping environment clean, they throw garbage in the streets
---> If people are aware of keeping environment clean, they won't throw garbage in the streets.
7. There was a loud noise next to my door last night, so I couldn't sleep
---> Because there was a loud noise next to my door, I couldn't sleep.
8. The storm destroyed many houses in this village last week
----> Many houses in the village were destroyed by the storm last week.
9. We use water carefully ,we have fresh water
--> If we use water carefully, we will have fresh water.
10. David had gone home before we arrived 
--> After David had gone home, we arrived.
11. Although he was ill. he went to school yesterday
--> Despite being ill, he went to school yesterday.
12. I am not you , but i think you should recycle these plastic carrier bags
-->If I were you, I would recycle these plastic carrier bags
13. This morning , I ate bread then I went to school
--> Before I went to school this morning, I had eaten bread
14. People destroyed forest , so there is a lot of flood now
-->If people don't destroy forest, there won't be a lot of flood.