Choose the best answer:
They were 30 minutes later because their car............. down.

The new plants ................... the need for companies to purchase paper that is not produced in an environmentally-friendly manner.”

Maria: "It was very kind of you to help me out, John." – John: “     .”

Choose the correct answer in each sentence.

Performing the steps in the proper sequence is  _____________  if the project is to succeed.

One of the popular ____ used in smartphones at present is voice recognition.

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Many birds ……….. south during the winter months.

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Danh từ “sự can thiệp” trong tiếng Anh là từ nào?

All .................. products must be properly registered before being shipped out the distribution center.

I have a message for people ............... by the traffic chaos.

............... passengers board the plane, flight attendants are expected to politely greet them.

Choose the correct answer in each sentence.

The supervisor allowed Mr. Martin to take three additional vacation days because of his ______________   achievement.

Choose the correct answer in each sentence.

The bus driver used a side street rather than the main highway,  _______________  avoiding rush hour traffic.

Choose the correct answer in each sentence.

Please print your airline ticket once ------- your credit card payment has been received.

Choose the correct answer in each sentence.

As soon as both sides reach _________   terms, the licensing contract will be signed.

Choose the best answer to complete each sentence

The _______ challenge of economic reform was to solve the problems of motivating workers and farmers to produce a larger surplus.

Choose the correct answer in each sentence.

This discounted train ticket is ______________   only at certain times of the day.

Judy suggested _____________ for a walk but no one else wanted to. 

Choose the best answer among A, B, C or D that best completes each sentence: …… the secret of how to make silk remained inside Asia, Europeans were forced to pay incredibly high sums of money for this mysterious material to be brought overland to Europe.

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Tính từ “high - qualified” có nghĩa là gì?

The father said to his daughter: “When you’ve finished lunch, I’ll ................... you back to school in the car. When school’s finished I’ll come to the school and  ............  you back home.”

Choose the best answer: 
“I think the girls in Cham’s dresses are the most beautiful. Do you agree __________ me?”