When I entered the room, I found a littleboy _____ on his mother’s knees _____ to draw a picture.

The students expected there ____more reviewing classes before the final exams.

Li Hua is taller than _________in our class.

.If this computer does not give complete satisfaction, please return it to the maker stating when and where it was ________.

Amy likes _______ every day. She thinks it is good for her health.