Exercise 6: Choose the best answer. 1. I’m not an astronaut. If I _________ an astronaut, I ________ my camera with me on the rocket ship. A. am/ will take B. was/ would take C. were/ had taken D. was/ would have taken 2. Don’t throw aerosol into a fire. An aerosol ________ if you _______ it into a fire. A. will be exploded/ throw B. would explode/ threw C. explodes/ will throw D. can explode/ throw 3. That sounds like a good offer. I ________ it if I ________ you. A. had accepted/ were B. will accept/ am C. would accept/ were D. accepted/ were 4. Nora is using my car right now. Is she ________ it back in time, you’re welcome to borrow it. A. brought B. would bring C. will bring D. brings 5. If energy ________ inexpensive and unlimited, many things in the world ________ different. A. is/ will be B. was/ would be C. had been/ would have been D. would be/ were 6. If you _______ all of my questions, I _______ anything to help you. A. don’t answer/ can’t do B. didn’t answer/ won’t do C. wouldn’t answer/ can’t do D. wouldn’t answer/ couldn’t do 7. If I _______ wings, I ______ take an airplane to fly home. A. have/ won’t have to B. had/ would have to C. have/ will have to D. had/ wouldn’t have to 8. - Here’s my phone number. - Thanks. I ______ give you a call if I _______ some help. A. will give/ will need B. would give/ needed C. give/ need D. will give/ need 9. If we ______ serious about pollution, we ______ more money to research. A. had been/ spent B. were/ had spent C. were/ would spend D. are/ will spend 10. Sea water is salty. If the oceans ______ of fresh water, there ______ plenty of water to irrigate all the deserts in the world. A. consisted/ would be B. consisted/ were C. would consist/ could be D. consist/ will be