1.
A. Nowadays it is quite common for 3. both parents to work.
B. The first curry house in England was 1. operated by an Indian immigrant.
C. Fish and chips is the oldest king of British food 2. still eaten today.
D. It is common to find British restaurant that 5. have food from other cultures.

2.
A. The writer Kazuo Isiguro was born in Japan, 2. but his family emigrated to Britain when he was five.
B. Although his first book was about Brazil, 5. he didn’t visit the country for many years.
C. Orlando’s daughter lost her hearing 4. at the age of one.
D. The boys got a job at the supermarket 6. through a special programme.

3.
A. The authorities warned 1. the public about the imminent danger.
B. He announced 2. his retirement international football.
C. Mary told 6. me she had found a well-paid job.
D. Fred should tell the manager that 4. a final decision hasn’t been reached yet.

4.
A. In future blind people will use a visual sensor 2. built into a pair of sunglasses.
B. There will be a time when we’ll be able to 5. download our entire consciousness onto a computer.
C. R. Kurzweil is the author of The Age of Intelligent Machines 6. and is one of the world’s best computer research scientists.
D. Scientists are already putting chips into the brain 1. to help people who have Parkinson’s disease.

5.
A. If the building catches fire, 4. leave it by the energency exit.
B. Uniless they invited me, 5. I would never go to their wedding party.
C. If the weather changes for the worse, 6. we shall not have a picnic.
D. If they ask me, 3. I will try to arrange the matter.