To ____ tourists, we have to change our usual foods to suit their tastes or adapt dances and traditions to suit their needs. (A. entertain B. enjoy C. attack D. persuade)

VERB FORM: If you leave your glasses there, someone _______ (sit) on them.

Kevin told Phong _____ to our environment in several ways. (A. plastic is too harmful B. plastic was very harmful C. plastic may be very harmful D. plastic had been very harmful)

Burning garbage _____ dangerous gases to the environment, and this may lead to global warming. (A. throws B. sends C. emits D. rejects)

There will be some unforeseen consequences to the environment if we ____ ecotourism projects properly. (A. didn't manage B. don't manage C. couldn't manage D. wouldn't manage)

If tourists win the trust of animals, they ____ put wild creatures in danger by encouraging them to relax with their natural predators. (A. will B. would C. could D. had)

REPORTED SPEECH: She said, "I don't know where my shoes are." → She said that _______.

The campaign _____things like water bottles and aluminum cans into new, useful objects like park benches, bikes, etc. (A. turns B. comes C. becomes D. recycles)

We get the energy we require for our everyday needs from many sources, but not all of them are _____. (A. unharmed B. eco-friendly C. ecological D. economic)

You should use electric fans instead of air conditioners _____ they don’t emit dangerous gases. (A. because B. although C. so D. but)

REWRITE: CONDITIONAL 1st or 2nd: He won't like the monitor. He can send it back to the shop. => If he _______.

REWRITE: CONDITIONAL 1st or 2nd: I want to go to the cinema but I haven't got enough money.

A lot of waste from hotels and vehicles is also ____ into the water and air. ( A. discussed B. collected C. discharged D. treated)