_____ the help of the policeman, I found my lost wallet.
| A．Under | B．Because | C．After | D．With |
Helen caught a cold the day before yesterday. But she’s ______ today.
| A．much better | B．more better |
| C．gooder | D．Good |
—How many students are there in your school? —About_______ students, I think.
| A． two thousand | B．two thousands |
| C．two thousand of | D．two thousands of |
Tom is ______ of the six boys.
| A．strong | B．stronger |
| C．the strongest | D．more strong |
——Must I take the medicine every day?—No, you _______.
| A．mustn’t | B．don’t |
| C．don’t have to | D．can’t |
—I looked for you in the office, but I could’t find you.
—Oh, I in the library
| A．read | B．reading | C．is reading | D．was reading |