简介： 二．选择填空（本题共15分，每小题1分） （ ） 21 --Why didn’t the little boy raise his hand in class today --Maybe the questions are ______ difficult for him_______ answer . A.too, to B.enough ,to 　C.not ,to D. so ,that ( ) 22-- ______ you ever ______ abroad --- Yes, but only once. A. Do ,trav...