It is generally considered unwise to give a child he or she wants.
Christina wasn’t saying anything, but the professor smiled at her _______she had done something very clever.
No matter what I do, my efforts ________always end in failure.
The factory used 65 percent of the raw materials, the rest of which _____ saved for other purposes.
There’s nothing more important than good health, _______?
To Daniel’s parents’ surprise, the living room was clean and tidy, with the window ______and fresh air ______in.