Are they natural?

[AB]

Dear teachers,

Are the following sentences natural?
Please explain and correct, if any wrong!

1. As far as I know, you used to be given 5 years imprisonment for smuggling.
2. Nowaday traffic jams is the common concern of the whole society.
3. In the eyes of demestic and foreign tourists, da Lat is a interesting place to visit.
4. Although having many difficulties, he still wins many prizes of Mathematics at age 18.
5. I have a feeling that the youth today tend to keep up with the jonenes.
6. The total investment in this project is $ 100,000
7. It was not by accident that many people place money over and above anything else.
8. According to recent survey data, HCM City has over 2 millions of motobike.
9. The hawker make best use of the sidewalks for their business.
10. From the other end of the line resounds a sweat voice of a woman: “Please holde it!”

Thanks a lot

[Pete]

Dear teachers,

Are the following sentences natural?
Please explain and correct, if any wrong!

1. As far as I know, you used to be given 5 years imprisonment for smuggling.
2. Nowaday traffic jams is the common concern of the whole society.
3. In the eyes of demestic and foreign tourists, da Lat is a interesting place to visit.
4. Although having many difficulties, he still wins many prizes of Mathematics at age 18.
5. I have a feeling that the youth today tend to keep up with the jonenes.
6. The total investment in this project is $ 100,000
7. It was not by accident that many people place money over and above anything else.
8. According to recent survey data, HCM City has over 2 millions of motobike.
9. The hawker make best use of the sidewalks for their business.
10. From the other end of the line resounds a sweat voice of a woman: “Please holde it!”

Thanks a lot
Here are my responses and some corrections:

1. As far as I know, you used to be given 5 years imprisonment for smuggling.[OK.]
2. Nowaday Nowadays traffic jams is are the a common concern of the whole society.
3. In the eyes of demestic domestic and foreign tourists, da Lat is a an interesting place to visit.
4. Although having many difficulties, he still wins many prizes of Mathematics at age 18. [OK.]
5. I have a feeling that the youth today tend to keep up with the jonenes Joneses.
6. The total investment in this project is $ 100,000 $100,000.
7. It was is not by accident that many people place money over and above anything else. [Or else keep the "was" but change "place" to "placed".]
8. According to recent survey data, HCM City has over 2 millions of motobike million motorbikes.
9. The hawker hawkers make best use of the sidewalks for their business.
10. From the other end of the line resounds a sweat sweet voice of a woman: “Please holde hold it!” [I'm not sure why, but I think it would be more common to hear, "… the sweet voice of a woman …"]