no

 Waste from factories may cause water in rivers dirty.

-Waste from factories will cause water in rivers dirty.

Water pollution may result to health problems. 

nhưng em sao đăng kí đc??

Tet is the biggest holiday of Viet Nam,which is celebrate on the last of january or the early of febuary.On this day,Vietnamese do a lot of fun activities.And me,Vichky Kratt also had a lot of fun.Me and my little sisters were allowed to stay up till midnight on the last day of year to watch firework.We have a custom of eating chicken after the firework dispayed.Then on the first day of Tet,we sang Karaoke.Next,on the second day,my friends and I visit to our teachers.Finally,on the third day,we came to school and played folk games.This is the best year ever.

Today,it was pretty cold in the morning.Everyone must put on their warm clothes . There was also drizzle so it was very freezy,that why no one dare to turn on the fans.But,not until at lunchtime.At this time,the temperature got higher,27 celsius.It is warm and sunny now.I love it,but I also like cold weather also.

1.a

2.a

the red sweater is pricier than the blue one