I work hard .......... help my family.

The teacher tried to explain the new formula ______________ his students.

He made himself pleasant .......... visitors.

We rejoice .......... her success.

Are you aware ________the time?

Teachers are responsible (at/for/to/of) their teaching.

........ all my care, it was broken.

Your friend is always complaining__________ her job.

The price of electricity is going up .......... October.

The price of electricity is going up _____ August.

He lives a rather lonely life. He doesn’t have much contact ......... other people.

I write letters _______ my right hand.

A sign warned motorists ______ dangers.

The government must care .......... the families of invalid soldiers.

We watched television ........... two hours last night.

They came to visit us _____ my birthday.

Why were you absent ____________ class this morning?

Today, women are increasingly involved ....... the politics.

How would the body react__________ the extreme changes in temperature?

I’m not familiar ____________ his name, but his face seems familiar me.

Your profession is similar (to/in/on/of) mine.