Every minute is made full _______ of _______ our lessons well.

The play ______ next month aims at mainly to reflect the local culture.

My doctor advised me to reduce the amount of sugar ______ to the milk I drink.

When she came in, she found a stranger ______ at the back of the classroom with his eyes ______ upon her.

______ for the breakdown of the school computer network, Alice was in low spirits.

A student of Fudan University ___ Huang Yang, was reported ____ by his roommate, ______ the whole nation.

_____ to improving services, we will provide customers with all the information they need.

________ many times, he still repeated the same mistake.

I remembered________ the door before I left the office but forgot to turn off the lights.

________ deep down in the earth for thousands of years, the dead forest has rotted away and become coal．