Choose the best answer to complete each sentence.

Today's cities are __________ than cities in previous times.

 Choose the word from the box to complete the following passage.

In paragraph 1, what pollutes the atmosphere and rivers?

Rearrange the given words to make complete sentences.
protection/ exploration/ provide/ astronauts/ environmental/ for/ or spacewalks./ life support/ planetary/ during/ Spacesuits/ and/

=> 

Rewrite the following sentences as directed (using the suggested words) so that the meanings stay the same.

She gets bad marks because she doesn't revise the old lesson.

=> If she

Rewrite the following sentences as directed (using the suggested words) so that the meanings stay the same.

They grow rice in tropical countries.

=> Rice

Choose the word (A, B, C or D) whose main stress is different from the others.

Identify the underlined word or phrase that must be changed to make the sentence correct.

They say that he can not only dance beautifully but also play piano well.

           A                         B                          C                               D