Correct the Following Sentence:

The man was much older than I.

Fill in the blanks of the following sentences with appropriate words.

He has fallen______danger.

Fill in the blanks of the following sentences with appropriate words.

He was standing there, leaning_____the wall.

Fill in the blanks of the following sentences with appropriate words.

Barking dogs_____bite.

Fill in the blanks of the following sentences with appropriate words.

What are the main reasons ______air pollution?

Fill in the blanks of the following sentences with appropriate words.

The boy does not know what can______done.