Question

Complete the sentences with the Present Perfect Simple,the Present Perfect Continuous or the Past Simple of these verbs

[begin] [cause] [do] [finish] [increase] [rise] [study] [take]

1.The team of biologists______
the effects of pollution on plants for years.

2.The government_________
measure to limit sea pollution by passing a new law.

3.Overfishing_______some species to become extinct over the years.

4.Ecotourism_____to become popular when i was at university.

5.The use of fossil fuels______
the amounts of carbon dioxide in the atmosphere.

6.The scientist______research
on coral reefs since he left university.

7.Sea levels______gradually in the last 10 years.

8.The journalist________
writting an article on the Amazon a month ago.​

Answer 1

The sentences has been completed

Step-by-step explanation:

1.The team of biologists HAS BEEN STUDYING the effects of pollution on plants for years.

2.The government HAS TAKEN

measure to limit sea pollution by passing a new law.

3.Overfishing HAS CAUSED some species to become extinct over the years.

4.Ecotourism BEGAN to become popular when i was at university

5.The use of fossil fuels HAS INCREASED the amounts of carbon dioxide in the atmosphere.

6.The scientist BEGAN research on coral reefs since he left university.

7.Sea levels HAVE RISEN gradually in the last 10 years.

8.The journalist FINISHED

writting an article on the Amazon a month ago.​