Work in class
Exercises:
a. Organic food _____has been growth___(grow/present perfect) by many farmers
b. Hopefully endangered animals _____will be saved__(save/future) by conservation
activists.
c. A lot of smog ________has been produced_ (produce/present perfect) by cars since
their invention.
d. By the year 2000, pesticides __had been used__(use/past perfect) for decades
Use the words to make passive voice sentences in the tense indicated.
a. (present perfect) car / cause / pollution
_The pollution have been caused by the car_
b. (future) reduce / waste material / recycling
___The waste material will be reduced by the recycling_____
c. (past perfect) the Earth / for dinosaurs / habit / by the time a big meteorite hit it
__The Earth had been habited for dinosaurs by the time a big meteorite hit
it.________________________
d. (future) our planet / conservation activists / help
Our planet will be helped by the conservation activist
Remember: Relative Clauses give additional information about something without starting
another sentence. Your texts will become more fluent and you can avoid repeating words if
you use relative clauses.
Relative Pronoun Use Example
who / that subject or object pronoun
for people
Jason is a person who/that
recycles
which / that subject or object pronoun
for animals and things
Compost is a fertilizer
which/that is organic.
whose possession for people,
animals and things
This is the lady whose house
has solar panels.
5. Complete the following sentences with the correct relative pronoun.
a. This is the paper ___which_____(which / who / whose) is to be recycled.
b. My brother is the person__who_________ (which / who / whose) does all the recycling in
our house.
c. This is the man__that______ (which / that / whose) only uses organic pesticides.
d. She is the person___whose_____ (which / that / whose) car is electric.
6. Re-write the sentences using a relative pronoun so they have the same meaning as the
original ones.
a. Sally is a teacher. Her car creates a lot of pollution.
_______Sally is a teacher whose car creates a lot of pollution_______________
