2012年2月14日上午,中共中央、国务院在北京人民大会堂隆重举行国家科学技术奖励大会。国家科学技术奖励大会的举行有利于在全社会形成崇尚科学的良好氛围,促进科技和教育事业的发展。这表明,国务院主要是在履行 ( )
—Nancy, would you mind turning down the music? Your father is writing his report. — .
---You are late again. The class ________ for five minutes. ---Sorry. There is something wrong with my bike.
_______ the mouse, you can choose an icon _______ for more details.
----Look at the boy running on the playground. Is it David? ---- It ______ be him. I saw him go to the teachers’ office just now.
---With 4G mobile phones, people can even see each other as they talk. ----Really? Would you show me it, please?