B. Bad habits can be harmful to our health.
C. Bad habits can be harmless to our health.
Đáp án B
When you put on clothing or make-up. you place it on your body in order to wear it.
World hunger it is one of the most urgent problems that we face today.
The surgeon examined the patient quickly, and then the operation was begun.
Our form teacher couldn't come to the party’, _______was a pity.