6. People generally think that smoking is a bad ______ .
| A．custom | B．habit | C．behavior | D．Action |
Laura’s knee pain ______ from such activities as running, hiking and horse riding.
| A．puts her up | B．holds her back |
| C．takes her off | D．gives her away |
As a saying goes, “two heads are better than one.”______, teamwork has greater power.
| A．In other words | B．On the other hand |
| C．On the contrary | D．In addition |
______ your strength, you have got to know who you are and listen to yourself before doing anything else.
| A．Finding | B．Found | C．To find | D．Having found |
Without my parents’ encouragement and support I definitely ______ where I am today.
| A．wasn’t | B．hadn’t been |
| C．wouldn’t be | D．wouldn’t have been |
We share the resources of the world, ______ any action of waste can affect other people.
| A．so | B．if | C．unless | D．because |