He comes here on Mondays, Wednesdays and Fridays — ________, to be exact.
American eat______________ as they actually need every day.
-----Li Ping told me that he overslept this morning. -----Oh, he rarely used to oversleep, ________?
Is this the first time that you _____ here?
This is a new ______ to language teaching, which can stimulate students’ interest to learn the language.