Music is taught in just a few colleges.

A. Just a few colleges teach music.

B. Just a few colleges teaches music.

C. Just a few colleges taught music.

D. Just a few colleges are taught music.

"Where were you spending your christmas holidays" Janet asked us.

A. Janet asked us where we had been spending our holidays.

B. Janet asked us that where we were spending our holidays.

C. Janet asked us where you were spending your holidays.

D. Janet asked us where were we spending our holidays.

"Where were you spending your christmas holidays" Janet asked us.

A. Janet asked us where we had been spending our holidays.

B. Janet asked us that where we were spending our holidays.

C. Janet asked us where you were spending your holidays.

D. Janet asked us where were we spending our holidays.

They say that the visitors were killed by terrorists.

A. It's said that the visitors were killed by terrorists.

B. The visitors are said to have killed by terrorists.

C. The visitors are said to have been killed by terrorists.

D. A and C are correct.

Tìm lỗi sai:

Nam, that went to bed early, couldn't finish his homework.

Cho phương trình \(x^2-3x+2m-1=0\). Tìm m để pt có nghiệm \(x_1\), \(x_2\) thỏa mãn \(x_1^3-x_2^3+3x_1x_2=9\).