(a) We are closely related to our environment. We should keep the environment free from pollution so that —----.

(b) We must follow the rules of hygiene. Without following the rules of hygiene, we —----.

(c) He was very hopeful about winning the game. He —----- before he took part in the competition.

(d) He had a street accident and his mother injured herself falling on the stairs. To tell the truth misfortune —-----.

(e) She has got GPA 4.50. If —----- more seriously, she would have got GPA 5 in the exam.

(f) The boy was playing when —-----. He stopped his playing at once.

(g) I feel a very bad headache. If —-----, I would continue my classes.

(h) Time plays a very crucial role in human life. We cannot prosper in life unless —-----.

(i) He runs very fast. Last year he —------ that other competitions were left behind.

(j) Human body needs a balanced diet. If we take a balanced diet, it —-----.