Many people （) cigarette ends carelessly.

They were also quite sure（)a cigarette end did not start the fire.

According to the passage, enjoying music is not an end in itself because people hope to __

回答题。 The Dangers of Secondhand SmokeMost people know that cigarette smoking is harmfu

To many Americans, Obamas election as President marked______.A．the ending of violenceB．a t

Why do many teenagers end up in failure when they try to fit in with their peer group？A．Be

How many troops will Britain have in Afghanistan by the end of 2012？A．9,500.B．9,000.C．5900