1.      Did you ask your sister to do the homework for you ?
Did you have …………………………………………………………………………………………….

2.      Did you ask your sister to do the homework for you ?
Did you have the homework………………………………………………………………….

3.      I am having someone fix the hole in the roof today.
" I am having the hole ……………………………………………………………………………….

4.      We have a famous hairdresser cut our hair every month
"We have our hair ……………………………………………………………………………………..

5.      Someone broke into Tom’s house last week.
" Tom had his house …………………………………………………………………………….

6.        People use the Internet as a means of education.

                         " The internet 

3/ Cho 100g dung dịch NaOH 20% tác dụng vừa đủ với dung dịch H2SO4 19,6%.

a.     Viết phương trình hóa học.

b.    Tính số gam dung dịch H2SO4 19,6% cần dùng.

c.     Tính nồng độ phần trăm dung dịch thu được sau phản ứng.