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Everyone knows about pollution problems, but not many people have________ any solution

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IPF has installed more than 60 air _______ devices in campus buildings and 238 in campus elevators.

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The famous physicist Albert Einstein ____ for a $1 to $5 donation before scribbling his name on a piece of parchment, and ____every cent to various charities

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When it comes to children's schooling problems, both parents have to ____ responsibility

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A: I wish I hadn’t criticised Mark’s drawing yesterday because he hasn’t spoken to me today. Do you think he’ll come to my party on Friday?
B: Possibly, he ________ you by then

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When I grow ___________, I want to be an astronaut

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I’m taking an intensive 2 day _______ course in computing. I want to learn the basics quickly before I start my new job.

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Hoi An Ancient Town is an exceptionally well-preserved example of a South-East Asian trading port ____ from the 15th to the 19th century.

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Two graduates are talking with each other. 
      Student A: "Then, are you working or taking a postgraduate course?" - Student B: “____”

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_______, she often wears in red and black.

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She nearly died of a heart attack ...... by fear

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They hopped over the fence to .......... from the guard dog

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______ did she go yesterday morning? - She went to the supermarket

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We paid ______________ the nose to get the car fixed.

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What time ...........................classes start?

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Of all herbal medicine manufacturers, Green Leaf is one of the ------- to have international distribution rights

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Climate changes________ the existence of the species

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"I'm working as fast as I can. I can't work ____ faster."

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You’d better ____ a commitment to being a volunteer on a regular basis

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Three prisoners ___________ from the prison in May

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Liam tried to _______ his enthusiasm for the project to the investors