If ________ all trees in an area are chop down, the soil will _____ easily.

Farmers can enrich the soil by ___________.

The government___________ the flood victims with food, clothes and money.

The ______of crops on the same land can prevent soil from exhaustion.

We usually have farm ______for meals when we spend our weekends on our uncle's farm.

There is scarcely ______ country in_________ world where the beginning of a new year is not celebrated.

Fortunately, we arrived ____ home at last.

Those students major _____ English.

If you don’t want to get _____ trouble again, please get _____early and go to work on time.

The assignment must be submitted ____the end ____the week.