--How did you help him ___over the difficulties?--I made it by_______ him never to give up.
Sometimes most of us probably are angry________our friends,parents or teachers.
David is________than his brother.So he always makes more mistakes.
I learned________a horse last year,and now I’m good at it.
Lily likes________books and magazines when she is free.
2013浙江杭州)She’s not strong enough________walking up mountains.