1) Before cars were invented, it …………………………. easy to take your family for a weekend outing. a) can't have been b) must have been c) shouldn't have been 2) In the 1940s, people …………………………. a television, because they could get news and entertainment from their radios. a) didn't need to own b) couldn't have owned c) shouldn't have owned 3) Before satellite navigation in cars, people …………………………. on a passenger for directions. a) had to depend b) must depend c) need to depend 4) Some people …………………………. with the steering wheel in one hand and a map in the other. a) may have driven b) ought to drive c) needed to have driven 5) I …………………………. this microwave oven. I never use it. a) needn't have bought b) shouldn't buy c) mustn't have bought 6) Before we all had digital cameras, it …………………………. expensive to keep buying film for your camera. a) must have been b) could have been c) can't have been 7) The electric spaghetti fork is a useless invention. The inventor really ………………………….. . a) shouldn't have bothered b) must have bothered c) ought to have bothered 8) The inventor of ‘cats eyes’ in the road …………………………. a medal. They have saved so many lives. a) should have been given b) should have given c) shouldn't have given 9) When James Watt invented the steam engine, he …………………………. that the railway locomotive would follow. a) must have realised b) had to realise c) can't have realised 10) Who knows what inventions people like Leonardo da Vinci …………………………. up with if they had had modern technology! a) might have come b) had to come c) couldn't have come

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