I.                    单词拼写
1.       He ______________ (克服) his shyness and went on stage to perform a song.
2.       One or two good friends are better than 100 ______________ (熟人).
3.       The man’s ______________ (身份) was being kept secret while he was helping police with enquiries.
4.       It was ______________ (荒唐的) of you to put forward such a suggestion.