He struck the snake ___ break its back.
| A．so as to | B．in order that | C．so that | D．in order not to |
Hard work and lack of sleep have ____ her beauty and youth in recent years．
| A．worn out | B．tried out | C．made out | D．sent out |
If there is any change about the time of the meeting, please inform us ____．
| A．at present | B．in the meanwhile | C．at times | D．in advance |
．The story goes ____ William Tell did kill the tyrant with that arrow．
| A．when | B．where | C．that | D．why |
—Hi, Mr．Brown! May I pick a flower in the park?
—____．
| A．No, you don’t | B．No, you mustn’t | C．No, go ahead | D．Yes, you could． |
Difficult as the question was, David ____ to find an answer．
| A．failed | B．succeeded | C．forced | D．managed |