We must await the results of field studies yet to come.

I want to take this occasion to thank you.

This was given us as a present on the occasion of our silver wedding.

Their investment turned out to be a failure and the magager was accused of neglecting his duties.

Environmentalists say a critical factor in the city,s pollution is its population.

If you really understood the difficulties facing the government,you wouldn,t be so critical of its spending reductions.

with extreme caution

A continuous beach is exposed to the beating of continual waves.

apply theory to practice

Black and white show a striking contrast.

You don,t have to sacrifice environmental protection to promote economic growth.

Conditions after the war led to the emergence of a new type of political party.

Assuming that the painting is really a Van Goah,how much do you think it,s worth.

The captain did his best to foster a sense of unity among the new recruits.