______ he met with the difficulty did he realize the importance of our help.
| A．Even though | B．Never until | C．Only before | D．Ever since |
5. In our class, when the bell rang and the taacher closed his book, it was a or everyone to stand up.
| A．signal | B．chance | C．mark | D．measure |
4. Hiking by oneself can be fun and good for health. It may also be good forbuilding.
| A．respect | B．friendship | C．reputation | D．character |
3. Some parents are just too protective. They want to ______ their kids from every kind of danger, real or imagined.
| A．spot | B．dismiss | C．shelter | D．distinguish |
2. During the war there was a serious lack of food. It was not unusual that even the wealthy families had to ______bread for days.
| A．calculated | B．considered | C．completed | D．controled |
1. Would you please __the paper for me and see if there are any obvious mistakes?
| A．look around | B．look into | C．look up | D．look through |