—__________ do you play baseball after school?
—Twice a week.
| A．How long | B．How often |
| C．How far | D．How soon |
Wood catches fire easily, so we must remember _________ fire.
| A．to keep it away from |
| B．to keep it away |
| C．not to keep it away from |
| D．not to keep it away from |
---Why does the boy have few friends?---Because he is_______.
| A．rude | B．kind | C．polite | D．careful |
The little boy wasn't listening _______ in class, so he often missed some important parts.
| A．careful enough | B．enough careful |
| C．carefully enough | D．enough carefully |
It is said that we will have _____ one-day holiday tomorrow, it’s ______ good news for most of the students.
| A．an; a | B．an; a |
| C．a; / | D．a; the |
They had a wonderful time _______________ .
| A．chat on the Internet | B．chatting on the Internet |
| C．chat in the Internet | D．chatting in the Internet |