All work and no play makes Jack a dull boy, which suggests that work and play do not ______ but promote each other.
| A．condemn | B．convert |
| C．contradict | D．confirm |
Mike has much difficulty ________ Chinese so he often asks me ________ help.
| A．to understand, with | B．understanding, of |
| C．to understand, for | D．understanding, for |
Only at that time how much time she had wasted.
| A．Mary did know | B．did Mary know | C．does Mary know | D．Mary does know |
It was in New York ___Kate first met Mr. John16-20 CBDBB
| A．which | B．how | C．that | D．when |
.If their marketing plans succeed, they ____ their sales by 30 percent.
| A．will increase | B．have been increasing | C．have increased | D．would be increasing |
--- Could I ask you a rather personal question?
--- Sure, ____.
| A．pardon me | B．go ahead | C．good idea | D．forget it |