Criticism and self-criticism is necessary _____ it helps us to correct our mistakes.
| A．by that | B．at that | C．on that | D．in that |
The woman boss told the customer that it was none of her business and ordered that he _____ away at once.
| A．went | B．go | C．goes | D．going |
Mr Li has some trouble sleeping, so drinking a glass of milk before going to bed every night is his common ________.
| A．knowledge | B．experience | C．practice | D．duty |
He succeeded in gaining a gold medal in Beijing Olimpics and all his efforts _____ in the end.
| A．made out | B．paid off | C．lit up | D．looked up to |
Our hiking last weekend was ______ unusual and exciting experience and the terrible storm made it ______ real adventure.
| A．the; a | B．不填; the | C．an; the | D．an; a |
Many college students now take part-time jobs in their spare time, hoping to be ______ of their parents.
| A．equal | B．independent | C．serious | D．anxious |