Complete the sentences. Use the new words.good(2), fit, keeps, healthy, difficult,

Complete the sentences. Use the new words.
good(2), fit, keeps, healthy, difficult, easy, useful
1) Ronald is a good sportsmen. He always _______ regular hours.
2) It is an _____ question. I can answer it now.
3) Jane always eats _____ food, she thinks it is very _____ for her.
4) Alex is ____ at swimming. He is a good swimmer.
5) I couldnt do it. It was very ____.
6)IIt is very ____ to know English.
7)It is good to keep ____.