I remembered the door before I left the office, but forgot to turn off the lights.
| A．locking | B．to lock | C．having locked | D．to have locked |
You got second and Tim first in the race! How did Tim beat you?
——________ ? Maybe he is just a lucky dog!
| A．What for | B．Who knows |
| C．So what | D．Guess what |
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 |