By measuring the color of a star, astronomers can tell how hot is it.

Câu hỏi liên quan

• Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

  ____________ sand covers only about 20 percent of Earth's deserts.

• If today is Sunday, we would have a lot of fun at the camping site.

• Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

  Those space-crafts are used_____________ taking photographs____________ space

ZUNIA12

• Choose the best answer:

  If we find out the remedy, we would save thousands of people's lives and bring ...... to many people.

• Read the following passage carefully and then choose the best option to fit each space by circling the letter A, B, C, or D.
  It's important to eat well, especially when you're (51)_________. If you are at (52)_________, you may go home for lunch, and have a cooked meal of (53)__________or fish and vegetables. Or perhaps you take some food with you to school, and eat it in the lunch (54) _____. A chicken and lettuce sandwich, with some fresh (55) __________, would be a light but healthy lunch. Many people around the world eat plain, boiled rice two or three times a day. Pupils   and   (56) ______  often   don't   eat   well   when   they're   (57) ______for an exam - they eat  chocolate and drink lots of black coffee! And by the way, doctors say everybody should start the day with a healthy (58) _________. It's also good for you to drink a lot of (59)_________ right through the day.

  (54)...........

• The baby can't even sit up yet, ______ stand and walk!

• Choose the correct option:

  The flight had to be delayed ........... the bad weather.

• Choose the correct answer to complete the sentences.

  You should _________ hotel before you visit Nha Trang.

• If I had studied carefully, I wouldn't made so many mistakes.

• Choose the best answer:

  Bangkok is ....... capital of Thailand.

• Can you tell me the_____of those sport shoes?

• Choose the best answer:

  We learn foreign languages _____ know more about other people and countries.

• Choose the correct sentence which has the same meaning as the given one.

  The taxi driver was friendly. He took me to the airport.

•  Choose the sentence that has tht same meaning as the original one by circling the corresponding letter A, B, C or D. 

  All the school children enjoyed themselves at this summer camp.

• Find the ONE among the underlined and marked A, B, C, D in each of the following sentences that needs correcting:

   

  In some countries, black people do not have equal with white people.

• Find the ONE among the underlined and marked A, B, C, D in each of the following sentences that needs correcting:

  Because his love for teaching, David would continue his teaching career.

• Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

  In space, with no (A) gravity for muscles to work against (B), the body (C) becomes weakly (D).

• Choose the letter A, B, C or D to complete the sentences. "They _______to be at school at 7:30 am"

• I can’t understand the French visitors. I wish I____________French.

• Choose the sentence that has the same meaning as the original one by circling the corresponding letter A, B, C or D. 
    I'm sure I told her to stay at home, but she's gone out.