_______ general, I found zoology to be an easier subject than botany.

The road is busy all the time, even ..............

We just rested _________ a short time.

She returned ____ China after spending much time abroad.

Due to industrialization, we have to cope ... the fact that many  species are ......... danger ........ extinction.

I was disappointed ________ the grade I received on my last essay. 

Governments have enacted laws to protect wildlife ________commercial trade and overhunting.

We are proud (at /in/on/of) our people's heroic tradition.

The computer isn’t working. It broke____________ this morning.

Look at the leaves ............. that tree. They’re ........... a beautiful colour.

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

Ed depends ________ his family for financial support.

Did you go on holiday ... yourself?

We are ashamed (at/in/to/of) his behavior.

Some large cities may have to ban cars.... the city center to wipe out smoke.

He insisted ______ taking us dinner.

The plane took___________ very quickly.

He’s getting bored_____________ learning_____________ heart.

Here’s a shopping list. Don’t buy anything that’s not ............. the list.

Your words are contrary (to/in/on/of) your acts.

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