It requires ____ your willingness to do the job. It also requires a lot of mental effort.
4. Hiking by oneself can be fun and good for health. It may also be good for building.
3. Some parents are just too protective. They want to ______ their kids from every kind of danger, real or imagined.
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.
1. Would you please __the paper for me and see if there are any obvious mistakes?
________ many times , he finally understood it.