Lucy ______ at home and read ______ interesting book.
| A．stay, an | B．stayed, an |
| C．stays, a | D．stayed, a |
—________do you go to the dentist?
—Let me see, twice a year, maybe.
| A．How many | B．How much |
| C．How often | D．How soon |
My parents are always worried about what will happen if I .
| A．succeeded | B．won’t succeed |
| C．will fail | D．fail |
At school, we are taughtknowledgehow to behave well.
| A．neither; nor | B．either; or |
| C．not only; but also | D．not; but |
—Listen! Theresomeoneat the door.
—It must be your sister.
| A．is; knocking | B．is; knock |
| C．are; knocking | D．are; knock |