When you are doing reading exercises, it is a good idea tothe questions before you read the articles. .
There _____ a number of people at the square in the morning, the number _____ over 1,000.
I _____________ his letter for a week.
We will go climbing _______ it ________ tomorrow.
My mother _______________ my aunt called her.
He is _______ clever boy that he can solve _____ many difficult problems.