Mr. Smith, who often helped passers-by repair their bikes, said that what he did was not paid but _______.
| A．relevant | B．optional | C．suitable | D．voluntary |
I was wandering through the street ________a beggar stopped me for some money.
| A．when |
| B．while |
| C．unless |
| D．since |
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 |