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

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You'll have to work harder to ...... with the top students in your class

Find which word does not belong in each group.

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The Editor reserves the right to ...... readers’ letters

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It was an act of considerable bravery, way beyond the call of duty, and we will forever be in his _______

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If you need anything, don't hesitate _________ me

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How long _______ in Da Nang? – I _______ there for 3 months

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............. , human beings have relatively constant body temperature

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It was not until she had arrived home _______ her appointment with the doctor

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When I ____ my best friend, she ____ as a voluntary teacher in Dream Homeless Shelter

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Life is sometimes very harsh for ____ families in big cities

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My mother can dance very .............. She is a professional dancer.

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Too many spam emails are .......... our inboxes

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Never ____ more people ____ in charity work than now

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There has not been a great response to the schedule, ____?

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Give me a call when you get ____________ the bus

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The thieves busted the ATM and made _____________ the cash inside

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This is Mr and Mrs Simth, those are .................... children.

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Chris ......... me ....... on what had been agreed at the meeting

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The billionaire, a renowned philanthropist, left all his money to charity when he _______

Choose the best option (A, B, c or D) to complete these sentences.

Where are you, Hai? - I’m downstairs. I ..................... to music.