Tính độ tan của Na₂CO₃ biết rằng ở 18 độ C  thì 250 gam nước thì có thể hòa tan 53 gam Na₂CO₃ để tạo thành dung dịch Na₂CO₃ bão hòa

The poor orphan boy_____a lot of money ( just give)

the bike___blue(just paint)

The poor people in this area___a lot of clothes and food last month(provide)

Lan won the first prize in the Frech-____contest(speak)

they will try____the project before the end of this month(complete)

Nam hasn't seen his new teacher yet ( đổi thành câu bị động )

Our__is at 8 o'clock today (arrive)

Would you make___about some interesting places to visit? (suggest)

Ha Long Bay was____by UNESCO as a world heritage site (recognize) 

A lot of__visit Ha Long Bay every day (tour)

Sapa is a wonderful____resort in Viet Nam (mountain)

giúp với ạ :((