when you ( ) to a friend ,you are using sign languaga.a.talk b.speak c.wave

c.wave
当你向一个朋友挥手的时候,你就是在用手势语言.
A 交谈B说话.when you ()your hand in class,you are saying "plese ask me.l know the answer."a. raise b.putdown c. shakewhen you ()your hand in class,you are saying "plese ask me.l know the answer."a. raise b.putdown c. shakea. raise 当你在课堂上举起手时，你就是在说：请叫我，我知道答案。when you ( )onefinger in front of yourmouthyou mean "quiet" a.put b.take c.givewhen oyu ( )onefinger in front of yourmouthyou mean "quiet" a.put b.take c.givea put当你把一根手指放在你的嘴前，你的意思就是：保持安静。