Which sentence is wrong?
| A．We don’t think it necessary to give students tests every week. |
| B．We don’t have to worry about not having enough to eat now. |
| C．My father has left school for over twenty years. |
| D．He was heard singing a pop song when I passed his room. |
—Do you like junk food?
—Yes, I like it very much, ________ it’s not good for health.
| A．because | B．so | C．however | D．though |
—What do you think of Tom?
—I think he is _________ in music. Listen! He is playing the piano so wonderfully.
| A．talented | B．active | C．serious | D．pretty |
—Which class sang ________ in the school singing competition yesterday?
—Class 1, Grade 8.
| A．good | B．better | C．the best | D．well |
—_________ do you go to the movies?
—Once a month.
| A．How many | B．How much | C．How long | D．How often |
—Is Sally the most careful in your class?
—Yes. So she always has __________ mistakes (错误) in the tests. And she gets the best grades of all.
| A．few | B．little | C．a few | D．a little |