【题目】If humans don't stop polluting, they will be ________in the future.

【题目】In order to protect ourselves, we should keep our________information safe.

【题目】— I haven’t got a mobile phone.

【题目】—What do you think of Tom’s work?

【题目】The little boy o________ his seat to an old lady on the crowded bus this morning.

【题目】As students, we should be r________for ourselves. We can’t spend much time playing computer games.

【题目】Teenagers should be________ (鼓励) to learn and spread Chinese culture.

【题目】The Chinese scientists’ ________ (成就) make the world shocked.

【题目】通常, 我们日常活动中不太关注那些没多大价值的事情。

【题目】我的老板原来在国外进修过好几年。