单项选择题
A．你万一获得了自信心，就能用自己的心去判断正确和错误。 B．一旦你获得了自信心，你就能用自己的大脑去评价真理和错误。 C．一旦你有了自信心，就能用自己的心灵去审判正确和错误。 D．你一旦对自己有了信心，就能用自己的头脑去判断真理和谬误。
A．academics B．sport games C．various activities D．computer games
A．early starters can learn to speak within only six months B．children show a strong desire to communicate by making noises C．imitation plays an important role in learning to speak D．children have various difficulties in learning to speak