For example , tropical rain forests are protected for their important role in both global ecology and the economic livelihood of the local culture; a coral reef may be_______ for its recreational value for scuba divers; and a scenic river may be protected for its natural beauty.

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________ long it takes, I will wait for you.

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

It would have been better if you wouldn't have taken a year out in the first place.

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Last night we came to the show late .............. the traffic was terrible.

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The guidelines for the monthly publication are  _______________  revised to adapt to the changing readers.

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The marketing director recommended that the new smartphone be released  __________  of schedule.

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Sunglasses come _________ many different colors, shapes, and strengths.

Choose the best answer among A, B, C or D that best completes each sentence: There is not much time left to do that work; the ….. running out.

Although they ———————, they did not lose heart.

Conservation activities for nonrenewable resources focus _______ maintaining an adequate supply of these resources well into the future.

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All managers are asked to explain the ------ of the reduction in sales last quarter.

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All managers are asked to develop the ability to interact effectively with others, which is of great  ________  to them.

The ................. country mouse ran home as fast as his legs could carry him.

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 It is taking the bank ________________   longer than expected to sell its European property assets.

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Tet is a .......... festival of the Vietnamese people.    

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Almost  _________  in our showroom will be on sale this weekend.

In 1970, the Canadian scientist George Kelly ______ that warm water _____ more quickly than cold water. 

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We provide not only home security systems but also commercial security,   _________ security cameras, access control, and fire monitoring.

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At Kaplan Optics, employees are  __________  to learn from one another by sharing their experiences from previous design projects.

A: "Can you concentrate on other things when you are listening to music?"
B: “________________________________.”

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There are many ................. throughout the year.