is known to us is that tobacco contains nicotine and other harmful products，so you should give up smoking．

Work hard and try to make what the teachers teach ________in class.

I would appreciate ______, to be frank, if the goods could be delivered as soon as possible．

—The tickets for the hit move Frozen have been sold out.
—Thanks for reminding me, but I am lucky to have got       .

Nelson Mandela devoted all his life to the struggle of the African people and      of every nation that seeks freedom．

—Daddy, which of these smart kids do you like best in last night’s TV show?
— ________ . They are all proud and selfish.

The new online library makes       possible for students to choose books by smart phone off campus．

By 2025, when the number of consumers worldwide has reached 4.2 billion, people with high income will be, for the first time, more than_______struggling to meet basic needs.

I’d appreciate __________ if you could lend me a hand with my homework.

He didn’t make____clear when and where the meeting would be held.