III. Supply the correct form of words in the brackets.

1. Three hundred people were left homeless by the earthquake. (HOME)

2. Filters do not remove all ___________________ from water. (CONTAMINATE)

Question III. Choose the best answer A, B , C or D.

1.Air__________, together with littering, is causing many problems in our cities today.

A. pollute                    B. pollution                 C. polluting                 D. polluted

2. The road in front of my office is always __________ when it rains heavily.

A. to flood                   B. flooding                              C. flood                                  D. flooded

3. Singapore is famous for its __________ and green trees.

A. cleanliness              B. cleanly                    C. cleaning                            D. clean

4. The roof of the building _____________ in a storm a few days ago.

A. damaged                 B. was damaged                      C. has damaged        D. has been damaged

5. A severe tropical___________ is called a typhoon.

A. drought                   B. rain                                        C. flood                                    D. storm               

6. If you were the president, what  ____________you do to help the environment?

A. will                         B. did                            C. would                                   D. do

7. A person who __________ the bagpipes is called a piper.

A. plays            B. performs                              C. entertains                     D. does

8. Don’t drink that water. It’s __________.

A. damaged                  B. dumped                                C. contaminated                         D. clear

9. The team’s success was largely __________ to her efforts.

A. because                    B. due                             C. since                                   D. however

10. All our English teachers are __________ speakers.

A. native                       B. original                                C. foreign                                  D. official