I know Mr Brown； we ＿＿＿＿＿＿ to each other at an international conference.
| A．are introduced | B．have been introduced |
| C．were introduced | D．had been introduced |
We really hope the sunny weather ________ for Saturday's tennis match.
| A．keeps up | B．picks up |
| C．takes up | D．comes up |
Our English teacher often tells us that the meaning of a new word may be ________ according to the given context.
| A．picked out | B．ruled out |
| C．brought out | D．taken out |
—Do you believe that opportunities always ________ the prepared minds?
—I couldn't agree more.
| A．make | B．change |
| C．keep | D．favor |
Mr. Smith got a ticket on his way home because he had failed to ________ at a red light.
| A．work out | B．pull out |
| C．look up | D．pull up |
—Do you know why Lisa cried in class？—I don't know and I don't ________.
| A．mind | B．matter |
| C．care | D．count |