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EXTRA EXAM PRACTICE ANSWER KEY 1 EXTRA EXAM PRACTICE

4 EXTRA EXAM PRACTICE

1 Remove the device to charge it. / recharge their teeth 2 1. a 2. c 3 1. F – ...... trials have been conducted on eight volunteers.

1 1. b 2. c 2 1. F – Old mobile phones and DVD players – in fact,

2. T – the computer was able to detect with 94-98% accuracy 2. F – ...... or even into a cavity in an existing tooth

4 1. will be recorded by the smart tooth

anything with a circuit board ....... laws requiring them to be recycled at special sites 2. T – On average, only 11-14% of e-waste is sent for recycling.

3 1. is given to people who are found guilty of breaking the existing laws 2. should cooperate with manufacturers to make his solution work

2. his daughter often needed to visited the dentist

5 1. habit 2. 3. 4. 5.

conducted accuracy slightly removed

4 Because they contain mercury, a heavy metal that can poison the land.

5 1. b 2. c 3. a

6 Accept all logical and grammatically correct answers.

2 EXTRA EXAM PRACTICE 1 1. a 2. c 2 1. T – ...... also called Silent Parties and Silent Dating 2. F – ...... the movement’s continued success shows that it must provide something that the public likes.

6 Accept all logical and grammatically correct answers.

5 EXTRA EXAM PRACTICE 1 1. a 2. b 2 1. T – These, in turn, provide us with meat and dairy products. 2. F – Scientist have several theories to explain Colony Collapse Disorder. 3. T – including the development of Remebee, a substance to protect the bees against a damaging virus.

3 1. find that other places are too noisy for them 2. are allowed to make noises which are not real words

4 It originated in New York City in 2002. 5 1. attending 2. 3. 4. 5.

spread eliminated evaluate appeals

6 Accept all logical and grammatically correct answers.

3 It may upset the bees’ natural cycle due to changing weather patterns. 4 1. pollinate many plants 2. might have been harmed by a fungus

5 1. empty 2. 3. 4. 5.

3 EXTRA EXAM PRACTICE 1 1. c 2. b 2 1. T – After practising on her pets ...... . 2. T – ...... Seacole has become an inspiration for feminist and anti-racism campaigners

3 a doctress 4 1. she had vast experience, she was rejected 2. she arrived in the Crimea, she set up a hotel 3. was appreciated by many doctors

5 1. largely 2. 3. 4. 5.

cleanliness set up awarded campaigners

6 Accept all logical and grammatically correct answers.

young farming allow while

6 Accept all logical and grammatically correct answers.

6 EXTRA EXAM PRACTICE 1 1. c 2. b 2 1. T – September, October, November and December are named for their place in the old Roman calendar 2. F – the calendar had to move forward by 11 days

3 4 5 6

Julius Caesar and Pope Gregory XIII corresponded to the Earth’s natural cycle 1. b

2. a

3. b

Accept all logical and grammatically correct answers. 1

EXTRA EXAM PRACTICE ANSWER KEY

7 EXTRA EXAM PRACTICE 1 1. b 2. c 2 1. F – code talkers ...... passed on messages and information using language like Navajo which were incomprehensible to Europeans. 2. T – In the 1970’s, IBM corporation created a code ...... . It took 20 years and thousands of people to crack the code.

3 Using invisible ink or shaving a slave’s head, tattooing a message on his head and sending him to deliver the message when his hair had grown back.

4 1. substituted one symbol for another 2. to fall into the wrong hands

5 1. cloth 2. 3. 4. 5.

coating ensuring passed on revolutionised

6 Accept all logical and grammatically correct answers.

8 EXTRA EXAM PRACTICE 1 1. c 2. c 2 1. monitoring their activities 2. can easily remedy this

3 1. T – YummyPets, which started in January 2012, already includes over 150,000 members in its native France. 2. T – It offers pets (and their owners) a chance to ...... exchange information about ...... pet-friendly locations

4 It’s easy to do on the site by giving your pet’s name, species and gender.

5 1. forthcoming 2. 3. 4. 5.

locations missing launched enthusiastic

6 Accept all logical and grammatically correct answers.

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