A girl on the bus begin to sing a pop song and soon all the other students _________.
Is she wearing the same skirt ___ her sister?
I shall remember the days __ we worked together.
As a good student, he’s seldom late for school in the morning, ___ he?
Liu Hulan would not ___ even before the enemy and at last died for the people.
You shouldn't judge a stranger only __ the clothes he wears.