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----- Nội dung dịch tự động từ ảnh -----
40. natural resources / instead of / we can save / solar energy / coal, gas and oil /
by using.
→We can save .....
41. making posters / around our school / and / how about / on energy saving /
hanging them /?
→ How about
...
42. it is /what I mean / very difficult / to make him for me / understand.
-It is
43. another glass / it was / such / delicious drink / that I got / a.
It was ....