There are............ saving methods and inventions to use solar energy.

Câu hỏi liên quan

• Choose the best answer to each question. 

   The Chief of police, _______work is very important, takes care of the public safety.

• Choose the best answer to fill in the blank:

  My shoes are dirty. I’d better take them ________before I come in.

• Choose the best options to complete the following sentences.

  Viet Nam is __________ country.

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• Who is going to __________ your children when you’re at work?

• Choose the word or phrase (A, B, C, or D) which best completes each following sentence.

  Would you mind if I _______a photo?

• Choose the best answer: 
  _______ bad luck he had!

• Choose the best answer to each question. 

  Although I spoke to him many times, he never took any _______.

• Choose the best answer to each question. 

  They are having their house_________by a construction company.

• Choose the best option to complete the following sentences by circling A, B, C, or D.

  My sister studies harder in order to ……… good grades. 

• Each of the following sentences has an error. Find the errors and correct them. 

  The study of these animals are fascinating and many books have been written about them.

• Choose the best answer to each question. 

  Ann is so ________ to succeed that I am sure nothing will stop her.

• Choose the word (A, B, C, or D) that best completes the sentence.

  When I’m tired, I enjoy (watch) ________________television.

• Choose the best answer to each question.

   _______, we tried our best to complete it.

• Choose the best option to complete the following sentences by circling A, B, C, or D.

  Ba asked his teacher………………… he could read the story.

• Choose the best answer to each question. 

  The clown was wearing a ________ wig and a red nose.

• Choose the correct answer. Only one answer is correct

  Would you ____________________waiting here for a moment ?

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

  Sam will not graduate unless he ________ all the tests.

• Choose the best options to complete the following sentences.

  Mai is talking about her __________ for Tet holiday.

• Choose the best option:

  The ____ plant provides a fifth of the nation’s energy supplies.

• The children like to put ___________- nice clothes when they go out.