Factory chimneys give _________ smoke that contains sulfur dioxide and nitrogen oxide.

Choose the correct answer in each sentence.

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

Choose the best answer:

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

Choose the correct answer in each sentence.

The local authorities decided to sell the district hospital to a private company for  ____________  2 million dollars.

An international menu ................ a variety of food can attract most of the tourists.

The_______ of living here, of course, is that it is expensive.

In Vietnam, each ecadernic year starts in September and is ........... into two terms

Eight kilometers is_________ equivalent to five miles.

Choose the best answer among A, B, C or D that best completes each sentence:  My sister am used to ______ up early.

Two-year postsecondary institutions were first  _______ in the United States in the early 20th century.

Paul’s ability to _____ a challenge made him the perfect candidate to head up the new sales division.

Choose the correct answer in each sentence.

The contractor has a fiffteen-percent ------ in business after advertising in the local newspaper.

Choose the underlined word or phrase that needs correcting: It was nice to see all his family, all of who I have met before

This is the first time James ................  a strike.

Choose the correct answer in each sentence.

Submissions of translated writings must include the original text  ____________  your translation.

Only 300 for that laptop? That’s a real .................. !

 I haven’t seen Kathy since we both ........... school in 1990.

Suzy________ her brain, and finally found the answer.

I phoned Tiki, who ........... me that my reference books would be delivered within 3 days.

I’m afraid we no longer sell that model of laptop because we had .................. a lot of complaints.

Choose the correct answer in each sentence.

Early participants in a Clean Revolution will reap considerable  __________  if they can face the challenges and take advantage of the opportunities presented by climate change.