Mr. Johnson said he was ......... favor of doing the work right away.

There’s really no need for you to be afraid ___________ the examination.

Are you aware ________the time?

When are you leaving __________ Singapore? This week or next week?

Many students aren't keen ....... their study at school.

The local people are very hospitable___________ strangers.

What do you often do ............ the evening?

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

We areall aware____________ the importance of the environment protection.

The participants must find _______________ all the answers in order to go in the next round.

There's nothing .......... exercises for making you warm.

Thank you. You are kind ............ me.

Maintaining biodiversity is important _______ us in many ways.

Share these sweets .......... the five children and see that each one gets a fair share.

My father insisted (in/on/of/at) building a new house.

Mrs. Liz was accused _______ having stolen the car.

I prefer coffee______ tea.

They succeeded ____________ escaping ______________ the burning house.

Why were you absent ____________ class this morning?

Can you help me, please? I can't see the differences .......... these words.

........... we didn’t like each other very much, but ........... we became good friends.