Mother is the person ______ is always there for you.
| A．who | B．which | C．whom | D．whose |
— We should drink _______water every day. It’s necessary for our bodies.
A. few B. enough C. little
—Would you mind ______here?
—I’m sorry about that. I’ll go somewhere else.
A. no smoking
B. not smoking
C. not smoke
Sam spends two hours _______ his homework every day.
A. to do B. doing C. do
—How often are the Olympics Games held? — __________.
A. Every year
B. Every four year
C. Every four years
— _______ do you prefer, walking or running? —I like running better.
A. Which B. How C. When