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Dr. Evans has ______________ a valuable contribution to the life of the school

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The invention of the mobile phone has undoubtedly revolutionized the way people communicate and influenced every aspect of our lives. The issue is whether this technological innovation has (25) _____ more harm than good. In order to answer the question, we must first turn to the types of consumers. Presumably, most parents (26) _____ are always worrying about their children’s safety buy mobile phones for them to track their whereabouts. We can also assume that most teenagers want mobile phones to avoid missing out on social contact. In this context, the advantages are clear. (27) _____, we cannot deny the fact that text messages have been used by bullies to intimidate fellow students. There is also (28) _____ evidence that texting has affected literacy skills. The widespread use of mobile phone has, out of question, affected adult consumers too. What employee, on the way home from work, would be reluctant to answer a call from their boss? Apparently, only 18% of us, according to a survey, are willing to switch off our mobile phones once we've left the office. Admittedly, mobile phones can be intrusive but there are obvious benefits to possessing one. Personally speaking, they are invaluable when it comes to making social or business arrangements at short (29) _____. They also provide their owners with a sense of security in emergency situations

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In the United States, the burning of fossil fuels to make electricity is the largest source of heat-trapping pollution, ____ about two billion tons of CO2 every year.

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

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I'm not sure whether I can gain any profit from the investment, so I can't make a(n) ____ promise to help you

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Children and parents should be concerned about _______ knowledge of growing vegetables and raising pets

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The government decided to _______ the restrictions on air travel as the pandemic was basically kept under control in the country

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My nickname in the office is “Slugger”, ____?

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I need some time to mull __________ the options before I pick one

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In spite of the hot weather, the little boy refused __________off his coat

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Hurricane Katrina was the costliest natural disaster in history, _________?

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It falls ......... me to thank you for all you have done for the association

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Never ________ to such a fantastic restaurant

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Antonio Gaudi, architect of Barcelona's Holy Family Church, died before seeing ............... the structure

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A slower-than-expected financial quarter has put some investors ______________ guard.

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

My best friend, Hanh,is ................... She talks all the time.

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................. problems in sailing in tropical seas is the coral reefs.

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Although Ellen has had a remarkable sales record since being hired, she is ------- to accept a management position because of the increased responsibility.

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These giant banks were all culpable for the economic crash, and I think we should _______________ them to shame for it.

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The sun went ....... behind the mountains

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Please don’t ring the doorbell when you get here. My baby ______. .