the students _an english class at 10:00 yesterday morning.A having B were having C had had D had
the students _an english class at 10:00 yesterday morning.
A having B were having C had had D had
her brother has _english for five years.now he can speak very good english
A learned B read C known D taught
great changes_in shanghai in the past few years.
A were taken place B have been taken place C took place D have taken place
neither l nor my father _been to australia
A hasn't B haven't C has D have