The length of time a person can concentrate varies from person to person. On average, a person can concentrate for several hours at a time.
concentrate hard...
concentrate hard...
The preposition "of" is typically used with the verb "concentrate" when talking about the substance or thing on which one is focusing attention or effort. For example, "I need to concentrate of my studies."
6 years
it may be probability that you might need glasses!!
It varies with each individual child, as some have mental health problems which prevent them from concentrating, whilst others just find it difficult to concentrate on one thing at once.
He finds it hard to concentrate in class.I will concentrate on my work.This orange juice is from concentrate.
Concentrate on a star or celebrity your a fan of and get updated to him or her. It wont take long before you forget.
4 weeks
I Concentrate on You was created in 1940.
not performing to the to the best of there ability and not being able to the concentrate enough
She needed to concentrate in order to finish her work on time. The athlete needed to concentrate on improving her technique to win the race. It's important to concentrate during exams to answer the questions accurately.