Choose the word or phrase that best completes each sentence below.
21. Teachers should teach ________ issues at school.
A. environment B. environmental C. environmentally D. environmentalist
22. Soil pollution has effected _______ to agriculture in many countries.
A. bad B. badly C. harm D. harmful
23. Water pollution in the lake ________ the fish die.
A. has made B. has make C. make D. making
24. If the air wasn’t dirty, I _______________ so much.
A. wouldn’t sneeze B. sneeze C. would sneeze D. to sneeze
25. Many aquatic animals __________ if people keep throwing rubbish into the lake.
A. die B. to died C. dead D. will die
26. The lake ___________ by the time we moved to this area.
A. had been contaminating B. contaminate
C. had been contaminated D. has contaminated
27. If I were you, I ____________ that car.
A. would buy B. buy C. bought D. buying
28. If we recycle more, we _______________ the Earth.
A. help B. would help C. helping D. will help
29. Mi and Nick like ___________ back to Mi’s home village on holiday.
A. comes B. come C. came D. coming
30. Villagers rushed into public shelters as soon as the volcano _________.
A. erupted B. erupts C. erupting D. erupt
Choose the underlined part that needs correcting in each sentence below.
31. Nick said (A) that she wants (B) to stay (C) in Viet Nam longer (D).
wants (B)➜wanted
32. It is predicted (A) that all students (B) have had (C) e-books by (D) 2050.
by (D)➜in
33. Environment pollution (A) is one (B) of the (C) impacts of human activities (D) on the Earth.
Environment pollution (A) ➜Environmental pollution
34. I also remember (A) the time (B) when I am (C) a student at a (D) university.
am (C)➜was
35. It is estimating (A) that about (B) three billion people use (C) the Internet around (D) the world.
estimating (A)➜estimated