The teacher let us sing a song to  .

    Malala Yousafzai, 20, is a Pakistani youth activist. She is the (young) person in the world ever to be named United Nations (U.N.) Messenger(信使) of Peace. The United Nations is international organization, which is meant to encourage (country) to work together on different opinions without the use of war. Yousafzai has(glad) accepted the role of working for girls' education. A messenger usually  (stay) in the position(职位) for three years. "you want to see your future bright, you have to start working now and not wait   anyone else," she said at the acceptance meeting in New York. In 2012, Yousafzai was nearly killed by the Taliban because she worked hard   (get) the same education for young girls in Pakistan. But later her condition improved.  a brave girl! Since then Yousafzai  (become) a symbol for peace and girls' right to receive an education.

—We are pleased with the government's efforts.

Most of the large cities in the world  the traffic jam.

Disabled children have  .