1,Tom didn’t use/used/using/get used to sail a boat when he was young ( Chọn)
REWRITE THE SENTENCES
2, There will be a solution to the problem of energy shortage at this time next week ( SOLVING)
They ……………………………………………….
3, We will suffer from pollution unless we keep the enviroment clean
If…………………………………………………….
1 use vì có trợ động từ “didn’t” rồi nên ko cần thêm “ed”.
2 They will be solving a solution to the problem of energy shortage at this time next week.
3 If we don’t keep the environment clean, we will suffer from pollution.