The "leap second" is designed to allow the Earth's rotation, which is gradually----------to catch up with atomic clocks.
DELAYING
LESSENING
DECLINING
SLOWING
However scientists only get six months ------- of the need to add a leap second.
INSTRUCTION
NOTICE
INFORMATION
ADVICE
------------- systems to fail temporarily.
CAUSING
INFLUENCING
COMPELLING
MAKING
400 flights were grounded as check-in systems ------------ down.
CAME
RAN
WENT
FELL
Some countries are in favour of abolishing the leap second while others ----- that there are many technical challenges.
QUESTION
DISAGREE
ARGUE
DISPUTE
Others argue that challenges are -------------- if the second is added at the same time in all countries.
GOVERNABLE
MANAGEABLE
ADAPTABLE
CONTROLLABLE
The cafe was --------with people.
MASSED
PILED
CRUSHED
CRAMMED
-------------- our lives,the Reading Club clears some mental space.
RELAXING
MODERATING
SIMPLIFYING
RELIEVING
The rules of the club are --------- straightforward.
RATHER
THEREBY
SOMEWHAT
EXACTLY
Bring a book and ---------- yourself as you did as a child.
CONCENTRATE
LOSE
FREE
PLACE
Galileo was the first person to ---------- the night sky through a telescope.
WATCH
NOTICE
REGARD
RECOGNISE
Europeans were well aware of the ----------- of glass.
MEANS
RESOURCES
ASPECTS
PROPERTIES
Galileo had highly skilled glassmakers he could ------------ on to provide him with a lens.
CALL
CATCH
HOLD
PICK
Glass lenses were then -------- to many other uses.
SET
PUT
TAKEN
TURNED
It's hard to ------- the impact of this technology on those who could only see a blurred world.
OVERCOME
OVERDO
OVERSTATE
OVERTAKE
From the top of a skyscraper we can---------- the quality of the light but rarely the glass itself.
APPROVE
HONOUR
COMPLIMENT
APPRECIATE
