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ANSWER KEY

EXERCISES – NOUN CLAUSES
Exercise A
1. The fact that 3. that 5. which
2. that 4. What 6. whether
Exercise B
1. why / how 3. when 5. that 7. how much
2. if (whether) / whether (if) 4. The fact that 6. What 8. where
Exercise C
1. Some scientists claimed that the reason why the days were getting longer compared to billions of years ago lay in
the relationship between the Moon and our oceans.
2. The professor told us the cosmological principle states that the universe should appear basically the same
everywhere, regardless of our position or direction.
3. The authorities said (that) poachers were stealing trees from woods at night in many nations, and that 100 pine
trees had been stolen from one forest near Berlin the previous winter.
4. The reporter asked if/whether the population of otters, protected since the early 20th century, had improved.
5. The undergraduate student wondered why we lacked genetic information for most of the planet then, despite huge
efforts to solve the mysteries of the human genome.
6. An education expert claimed that success was possible if all educational materials were child-sized, appealed to all
senses, and encouraged creativity.
7. A farm worker wanted to learn which simple interventions could help save lives from venomous snake bites that kill
thousands worldwide.
8. An authority denied that NASA would return to the Moon with the Artemis programme the following year for new
studies on the potential for life on the Moon.
Exercise D
1. According to a recent survey, around six in ten US parents worry about how to meet the developmental milestones
of their babies.
2. Scientists discussed whether to apply high heat to certain foods in the research to get conclusive outcomes from
the research.
3. However hard non-governmental organisations have been trying to increase the amount of recycling in the world,
awareness about recycling has not yet been achieved at the desired level.
4. Whatever it requires to build new recyclable cities, the authorities are determined to do this work with the influential
town planners.
5. Officials were debating whether to utilise communal heat pumps effectively to heat both tall buildings in
metropolitan cities and hard-to-heat houses in the countryside.
6. Some young workers pursue multiple jobs and sources of income wherever they live in the world.t
Exercise E
1. What 3. What 5. How
2. How 4. What 6. What
Exercise F
1. The manager apologised to the new member for interrupting his speech.
2. The doctor reminded the assistant to call them as soon as he finished his report on commonly misused antibiotics.
3. The manager admitted being the one to blame for losing three matches in a row due to his wrong player selection.
4. The company owner accused the worker of selling all their confidential files to their rival companies.
5. The passengers are obliged to wear a helmet and a life jacket during rafting activity.
6. The doctor recommended those pills be taken by my father for two months.
7. It is urgent that amateur divers not leave the group during the dive.
8. The pilot refused to accept the excuses the crew make for their mistakes anymore.
9. The teacher warned the students not to open their exam booklets before the bell rings.
10. The professor told his assistants to hold the tube carefully.

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