－________students are there in your class?
－There are 56.
| A．How many | B．Who | C．What | D．When |
—Must I finish my homework now, Mom?
—No, you _______.You can do it tomorrow.
A. can’t B. needn’t C. mustn’t
—_______ do you like dolphins so much?
—Because they’re really cute!
A. Why B. Who C. When
—So many people like to watch The Voice of China.
—wonderful it is ! I like it very much..
A . How B. What C. What an
Which of the following sign means “No smoking”? 
—Which do you like better , KFC or McDonald’s（麦当劳）?
—. I just like Chinese food.
A. Both B. None C. Neither