Choose the correct answer in each sentence.

Ms. Nguyen is assigned to oversee ------- only an television advertising campaigns.

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How many.................. were there in all?

This meeting may take longer than expected if we are going to ......... an agreement.

Astronomers have ____ a new planet outside our galaxy.

 He has ________luck. Everything he does, he gains. 

Nowadays, many serious childhood diseases  ............  by early immunization.

Bill: “ Let’s stop for a drink.” -  Bruce: “     ”

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Although they usually leave at 6:00 P.M, the employees are  _____________  in the store preparing for tomorrow’s big event.

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------- all the nominations for board members have been received, a complete list will be posted.

All work ............. 9 p.m is considered overtime according to your contract.

_____________ of the students in my class could solve the problem yesterday.

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As a  _____________  for making contracts with a lot of new clients, Mr. Skinner was given additional vacation days.

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In order to be eligible for this position, you must have at least five years of experience in the insurance _________.

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An extensive  ______  conducted by lvanex Communications revealed that Internet speed was one of the most important factors to customers.

I have tried hard but I can’t earn enough money.

Scientists and engineers have invented filters and other methods of removing pollutants from industrial wastes.

Choose the best answer to complete each sentence

Despite the plan's emphasis on agricultural _______, the industrial sector received a larger share of state investment.

Choose the best answer among A, B, C or D that best completes each sentence: Some snakes are poisonous, …….others are harmless.

The monthly meeting is expected to end ............... 2:00 p.m.

Choose the best answer A, B, C or D to complete the sentence.

Although it's fine for figures like Elon Musk and Stephen Hawking to raise ____ about the dangers of artificial intelligence, the majority of computer scientists agree that these problems are far away.

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The catalog for the gallery contains an accurate _____________   of each piece of artwork that is offered for sale.