I'm very sorry ............. what I have done.

John missed a lot of lessons. He was ill _____ January to March.

She gave some advice .......... her brother.

What do you think .......... this sonata of Beethoven?

Maintaining biodiversity is important _______ us in many ways.

Are you acquainted _____ the lady?

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

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

This apartment would be too crowded for two people, but it is perfect ___ one.

She is very angry ......... me.

I'm not acquainted (at/in/with/of) those flowers.

I'm very grateful .......... her ......... help.

The bomb went____________ killing several by-standers.

He is a friend .......... mine.

The initiative for founding the Red Cross came _____ a Swiss man called Jean Henri Dunant.

His opinion is different _____________ mine.

A bird .......... the hand is worth two .......... the bush.

Why were you so unfriendly .......... Linda? Have you had an argument with her?

Bombay is ........... the west coast of India.

She always takes good care_______ her children.

The accident was my fault, so I had to pay for the damage ........... the other car.