More than _____children took part in activities last month.
| A．two thirds | B．thirds second | C．second three | D．two third |
—Do you know him?
—I’m sure I’ve seen him _____, but I can’t remember the right place.
| A．anywhere | B．nowhere |
| C．everywhere | D．somewhere |
What can we students do _____ the environment?
| A．to protect | B．protected |
| C．protecting | D．protects |
—How long have you lived in this town?
—_____ 2001.
| A．Since | B．In | C．To | D．Until |
There are five people in the room, but I know _____.
| A．both of them | B．none of them |
| C．all of them | D．neither of them |
Don’t give up _____ you will never succeed.
| A．and | B．but | C．while | D．or |