What I want toto teenagers is that being addicted to the Internet will to some extent do harm to both mental and physical health．

rge had followed his father’s advice, he________ a lawyer now

I often hear a new-born baby next door __________ a lot at night.—Maybe the baby is hungry then.

et’s meet at the schoolat nine to morrow morning, shall we.

To our delight, up till now, the European Union, Japan, and Russia ________ their targets for CO2 emissions (排放)