John Snow became inspired when he thought about helping ordinary people Cholera.

he world economy growing weaker, for many youngpeople, the dream of landing a good job is becoming harder and harder ________.

The number of the students in our school thanthat of theirs.

Sam is a little weak in English and he has _______________ what the teacher says in class.

It is _____ he often fails in exams____ makes his parents worried about him.