— I wonder if I can learn English well.—________. All things are difficult before they are easy.
一What’s this in English? — ______ a pen .
一Is that his dictionary? — ___________ .
早上老师上课时,同学们应该说:________。
当你向别人打听某事时,你应该说:________。
找出都是三笔完成的一组字母:_______