You might not like the way Sam behaves, but please be kind to him.______ , he is your grandfather.

Our English professor is a man of French （ ）.

Solar energy is a new kind of energy _____ that we can use to replace the traditional energy.

The children have been （ ） since their father left．

Fresh air, enough exercise and nutritious food （ ） to good health.

We could see the stars （ ） well from the top of the mountain.

It was Thomas Edison that （ ） the electric lamp.

Mary and I （ ） the new college life soon, but Tom didn’t.

（ ） all her friends and money gone, Kate felt totally hopeless.

Humble （ ） it may be, there is no place like home.

The two parties haven’t reached any agreement, but decided to set another date for （ ） talks.

（ ） is careless when disposing of his wastes.