-________ I have two tickets for the Chinese Farmers' Painting Exhibition?
-Sorry. The tickets are sold out.
Must
Need
Should
May
Can you think ___________?
—________________? —Seven thirty.
He needs to work ________ hour ________ night.
—Let’s play chess. —___________. I want to watch TV.
My father is my grandfather's __________. A. cousin B. son C. brother