Viết lại câu cho phù hợp

1.      They started playing football an hour ago.

 They have____________________________________________________________

2.      Let's use public buses instead of motorbikes.

 What ________________________________________________________________

3.      If you don’t succeed, you will have to try it again.

 Unless _______________________________________________________________

4.      It is a national holiday, so you won’t find many shops open.

 Because______________________________________________________________

5.      The children are going swimming because the weather is hot.
Because of ___________________________________________________________            

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

The Internet___________________________________________________________

7.      The actress wore sunglasses because she didn’t want anybody to recognize her.

The actress wore sunglasses so as __________________________________________

8.      I can’t drive because I haven’t passed the driving test.

 Because of____________________________________________________________

9.      These children are quick thinkers.

These children can _____________________________________________________

10.  Be alert or your computer will be infected with viruses.

If___________________________________________________________________