Many countries / already using / solar energy.

A. Many countries are already using solar energy.

B. Many countries have already using solar energy.

C. Many countries are using already solar energy.

D. Many countries was already using solar energy.

Đáp án
A. Many countries are already using solar energy.

Câu hỏi thuộc Bài tập:

E7- GS- Unit 10- Practice (4)