__ what I had previously thought, my new biology teacher turned out to be a rather interesting person.

In recent years much more emphasis has been put______ developing the students productive skills.

I have to ______ now. It’s time for class.—- OK, I’llcall back later.

I need to ________a job because my mother cannot cover the cost of my school fees.[ ]

There is no such place ________ you dream of in all this world.