Unit 6

Millions of tons of plastic_______ away every single day.

• throws

• are thrown

People ________away too much rubbish.

• throw

• are thrown

Many stars _______ billions of years ago.

• are formed

• were formed

The world’s highest mountains ______ in Asia.

• find

• are found

Scientists _______ that there will soon be more plastic than fish in the ocean.

• believe

• are believed

The first plastic ________ in 1907.

• invented

• was invented

Many people _____________ lots of electricity.

• waste

• are wasted

Too many trees ______down every year.

• cut

• are cut

9 I _____ by a police officer who wanted to ask me some questions.

• was stopped

• stopped

Sometimes, turtles (a)   accidentally caught in fishermen’s nets.