Các từ: “Bồ hóng, xà phòng, ti vi” là:

A. $x^2+y^2+z^2-2x+4y-6z+9=0.$           

B. $x^2+y^2+z^2+2x-4y+6z+9=0.$

A. Advantages of mandatory volunteering programs for students

B. An obligatory volunteer program at high school in Maryland

C. Students of 1997’s attitudes towards obligatory volunteering

D. Volunteering at a variety of organizations in Maryland in USA

A. khối 9 là 240 quyển, khối 8 là 300 quyển.                    

B. khối 9 là 280 quyển, khối 8 là 260 quyển.

C. khối 9 là 260 quyển, khối 8 là 280 quyển.                       

A. Linda is not maintaining her training to score well in swimming.

B. Linda does not want to win a high prize in swimming at all.

C. Linda will win a very high prize in swimming if she maintains her training.

A. “nhà”, chuyển nghĩa theo phương thức hoán dụ

B. “nhà”, chuyển nghĩa theo phương thức ẩn dụ

C. “tay”, chuyển nghĩa theo phương thức hoán dụ

D. “tay” chuyển nghĩa theo phương thức ẩn dụ

A. I had to look after my best friend, who was sick.

B. I was sick when I cared for my best friend.

C. I was cared for by my best friend when I was sick.