As we know, ________ is good exercise and it is necessary for health.A. walk B. walks C. walking
—Let’s play chess. —___________. I want to watch TV.
My father is my grandfather's __________. A. cousin B. son C. brother
—When is ___________ birthday party? —Her birthday is October fifth.
Tommy has breakfast _______ 6:30 every morning.
We have bags _______ red, yellow and green ________ $18.