điền các từ sau vào ô trống :

There are a lot of ways we can help. We must keep water clean and not waste it. Some _____ are helping people to collect and store water. They are also ______ new dams, wells, and pumps, so that poeple can have clean water _____ their homes. We must use non-renewable ____ carefully, Scientists are investigating ways to use renewable resources, like sun, wind, and water, to make electricity so that we don't need to use so many _____. we can also try to use less electricity

1. I often chat………my friends in the evening.

A. at                               B. of                          C. with                               D. to

2. A: How much is it? - B:…… …………………………………………….   

   A.There are many             B. 25,000 VND     

   C. Oh, it’s delicious           D. There are three.

7. Diana is in the art club. She likes painting pictures, and everyone enjoys them. She is very ___________ .

A. shy                  B. kind               C. funny                    D. creative

8.  Do you and Vui play volleyball ? Yes, ..................

 A. we do                       B. they do                  C.you do                    D. I do

9.There are many chairs in the kitchen, __________ there is only one in my bedroom.

A. so                           B. because                        C. but              D. in

10. My father works _________ a factory.

A. in                            B. with                              C. on                     D. by

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