根据下面的首字母提示或汉语提示写出能填入该句的正确单词。
(1) Only by working hard can you a__________(获得) a good knowledge of law.
(2) He has made up his mind to face the ________(挑战) and solve the problem.
(3)Don’t _______(暴露) yourself to the sun for too long.
(4)He was a _______ (安排) by his family to marry a girl of his own class.
(5) His _______ (以 前 的) attempt was successful.
(6) The minister _______ (批准) the building plan yesterday.
(7) I will t_______ (请客) you all to dinner..
(8)They a_______ (帮忙) in solving the problem.
(9)They would i _______ ( 告诉) him of any progress they had made..
(10) I will be back in an i_______ (马上) .