The system has 4GB RAM, and it is (a)   to 32GB. (expand)

(a)   use of time and energy can waste students' efforts to prepare for the university, so students should learn to be disciplined and organized. (efficient)

10 Downing Street is the British Prime Minister’s official (a)   . (resident)

Rescue planes are trying to (a)   the missing sailors. (location)

It sounds like a good idea, but first let's look at the (a)   of it and work out the costs. ( practical)

All products can be customized to suit your specific (a)   . (require)

The football team is expected to (a)   for the title of world champion next year. (competition)

It is hard to (a)   how many children have dyslexia with the changing criteria . (estimation)

I like this tech company because its service guarantees next day (a)   . (deliver)

The feeling that you no longer have the confidence or enthusiasm to do something is called (a)   . (encourage)

The company apologized for the delay and any (a)   it may have caused. (convenient)

The research shows that computer games may cause (a)   . (aggressive)

The (a)   power of his music can help you show your thoughts and feelings. (expression)

The need for sleep varies (a)   from person to person. (considerable)