17/ Keeping the environment clean is very important
It is…………………………………………………………………………………...
18/ ‘You should turn off the light before going out” Mrs Lan said
Mrs Lan suggested…………………………………………………………………..
19/ Why don’t you plant some trees around your house to get more fresh air?
How about……………………………………………………………………………
Loga
Sinh Học lớp 12
