They have  ......... a lot of extensive research into renewable energy sources.

Câu hỏi liên quan

• Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
  That was so serious a matter that I had no choice but to call in the police

• Choose the best answer:

  Mary ................. write to me last year.

• Choose the best answer:
  Without telling her directly, they ______ that she’d got the job.

ZUNIA12

• When I borrowed his book, he was angry as if he_____ the most precious thing in this world.

• He was an  .............  writer because he persuaded many people to see the truth of his idea.

• Choose the correct answer in each sentence.

  Ms. Nissim, the founder of Hartwell Industries, will   ______________ a talk on effective sales strategies at the marketing convention.

• Being listed as an endangered species can have negative effect since it could make a species more desirable for collectors and poachers.

   

• Probability of extinction depends _______ both the population size and fine details of the population demography.

•  I must remind my students that this grammar point needs …........ 

• Indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

  His life is a rich source of inspiration for many writers and poets.

• Choose the best answer:

  I can’t stand ............. on the underground when it is busy. 

   

• Synchronized swimming is a sport in which groups of swimmers ................ in patterns in the water to music.

• Choose the best answer:

  After coming home, she cleaned the floor .......... cooked dinner.

• She loved tennis and could watch it till the _______came home.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions: 

  The teacher gave some suggestions on what could come out for the examination.

• Chọn từ thích hợp điền vào chố trống:

  Only a few of the many species at risk of extinction actually make it to the lists and obtain legal _______.

• Choose the best answer:

  Peter has been working for 10 hours. He _______ be very tired now.

• Although ferns lack flowers, they do have leaves, stems, and root.

• Choose the best answer

  Today's online world is full of opportunities for all of us to ____ our own learning path.

• Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

  Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness