Fill in the gaps with one of the question words from

Fill in the gaps with one of the question words from the list.
who, what, which, where, how long, when, what time, how often, how, whose
1 ..Whose.... is this bag? My sister's.
2 ..................are the children? At school.
3 ..................is Paul coming back? Tomorrow.
4 ..................does he drive? Very dangerously.
5 ..................is that woman? Mary Smith.
6 ..................do you finish work? At four o'clock.
7 ..................do they buy a newspaper? Every day.
8 .................. is her name? Catherine.
9 ..................city do you like best? Rome or Milan?
10 ..................have you been a teacher? Since 1991.