III. Circle the best answer A, B, C or D to complete each sentence. (2.5 pts)

1. Unless you ____________ all of my questions, I can’t do anything to help you.

A. answered                  B. answer                      C. would answer           D. are answering

2. I ____________ my work already. I’m ready to go for a walk with you.

A. finish                        B. am finishing             C. have finished            D. have been finishing

3. The facsimile             ____ by Alexander Bain in 1843.

A. is invented               B. was invented            C. invented                   D. has been invented

4. _____________ the existence of too much artificial light in the environment, for example from street lights, which makes it difficult to see the stars.

A. light pollution          B. global warming        C. climate change          D. acid rain

5. My friend Jolie and I have ___________ since we were little. We write to each other regularly

A. kept in touch            B. kept up with             C. lost touch with         D. lost heart

6. She often drives very ________ so she rarely causes accidents.

A. carelessly                  B. careful                      C. careless                      D. carefully

7. The polluted water _____________ the death of the fish in the lake behind my house.

A. because of                B. lead to                      C. due to                        D. in spite of

8. Glass is broken up, melted and made into new ________                   .

A. silverware                 B. hardware                  C. ironware                   D. glassware

9. ______________ is an instrument for making sounds louder.

A. Loudspeaker            B. Recorder                  C. Facsimile                  D. Radio

10. Do you mind if I switch on the radio?         - _____________.

A. No, thank                 B. Yes, go ahead          C. No, not at all            D. Yes, you can