III. Supply the correct tense of the verbs in brackets

1.Mrs Green wanted ______________ for her daughter’s hard work . (reward)

2.You car should __________  carefully . (wash)

3. She ___________ French when she was at school . (study)

4.My brother is familiar with ___________ this game . (play)

5.  The film (start) _________ at 8:00 tonight. Would you like (come) _________ with us?

6. Mrs. Loan (teach) ________________ English for more than 10 years.

11. Earth (hold) ________________ by the gravity of the sun and orbits around

12.These tress ____________ yesterday . (plant)

II. Choose the word or phrase that best completes each unfinished sentence below  

1.By the middle of the 21st century, people in ………… countries will be using more renewable energy.          

            A. developing                           B. develop                    C. to develop                   D. development                                                               

2. Alternative sources of energy___ developed in the near future.

A. is                             B. was                          C. has been                  D. will be

3. “Why is it called a ____________ source?” – “Because it can be replaced easily and quickly.”                                            

 A. effective                  B. specific                    C. renewable                      D. non-renewable                                     

 4. Hydro power is _____________ because dams cannot be built in certain areas.                                                     

 A. limited                     B. unlimited                     C. abundant               D. enough                                                           

5. At this time next week, we ______________ a wind turbine in our garden.                                                      

A. install                       B. installed                       C. will installed          D. will be installing                                          

6. Biogas is _____ and cheap for cooking and heating.

A. plenty                      B. abundant                  C. serious                     D. expensive   

7. A hydropower station ______________ in the North of the country next year.                                            

            A. will be built              B. were built                    C. was built               D. has been built                                                           

VI: Rearrange the words to make meaningful sentences

1. this time tomorrow/ English / They/ will be learning/.

=> ………………………….………………………………………………………………..…

2. Solar energy/ in the world/ by many countries/ will be used/.

=> …………………… ……………………………..…………………………………………

3. to another/ How/ people fly from / will/ one continent /?

=> …………………… ……………………………..…………………………………………

V: Rewrite the sentences so that they have the same meaning as the original ones.

1. We will use less electricity in the future

=> Less electricity ………………………….…………………………………………………

2. This is my computer

=> This computer is ……………………………..………………………………………….…

IV: Read the passage again and complete the sentences.

1.      People in ---------------------------------------------------------areas have to gather wood to use as fuel.

2.      Biogas is mainly used for -------------------------------------------------------------------------------------.

3.      Biogas helps solve the problem of indoor ------------------------------------------------------------------

4.      The use of renewable energy sources in developing countries is ----------------------------------------

5.      In the future, the --------------------will be used as the main environmentally friendly energy sources.

 III: Read the passage and tick (ü) True or False.