Great changes______ in the city since1970.
—When is National Public Memorial Day(国家公祭日) ? —On December 13th. And it can us of the hard days in the past.
—What you can do is _______ more English if you want to learn English well. —You mean _______ more English is useful to me?
—There’re a few new words in the article? —What about _________in your dictionary?
—How do you improve your listening skill, Mary? —I often do it _________ tapes and English radios.
After a 3-week winter vacation, students usually some weight when they return to school.