Câu hỏi:
Once non-renewable energy sources are used _________ they are gone forever.
A. out
B. up
C. for
Trả lời:
Đáp án: A
Giải thích: use out (v) sử dụng hết
Dịch: Một khi các nguồn năng lượng không tái tạo được sử dụng hết, chúng sẽ biến mất vĩnh viễn.
Câu 2:
Every month, scientists invent new gadgets and ____ to help us with our daily lives, and discover ways to make existing technology faster and better.
Câu 5:
Talk about causes and effects of water pollution as well as solutions to this problem
Câu 7:
What put me off the idea was simple how expensive it was going to be.
=> The sheer ________.
Câu 8:
Tìm lỗi sai và sửa lỗi
She wanted to know exactly what was the biggest challenge facing the company.
