Her husband earns ____ she while they do the same amount of work.

Do you like your maths teacher? —Sure, because he is the teacher ___ helps me a lot.

The number of teachers in our school _______ greatly increased last term.A number of teachers in this school ______from the countryside.

Most students think Lady Gaga is one of _________ singers in USA now.

The teacher encourages us todiscussions at the English corner.