On hearing a great noise, Mike looked forward through the window _____ what happened outside the room.

Generally speaking, the hard one works, _______.

Part of the work is to be finished today and ______ by this weekend.

Of all the applicants, ______ do you think is fit for the position?

It is no longer a problem _______ the poor children in this district can go to school.

Many people attend various public lectures, chiefly ______ themselves familiar with the latest development of different fields.

We need a more capable leader, ______ with strong will and as well as good humour.

"______ the friendship between our two people last forever!", and with this sincere hope, the president concluded his speech.

______ that no one was ever prepared for it.

_____ the teacher's suggestion, Tom finally found a way to settle the problem.