用所给单词的适当形式填空。
l. It takes my mother an hour _____ (listen) to music.
2. Emily _____ (not take) the train to school from Monday to Friday.
3. They enjoy _____ (their) on Sundays.
4. There are many tall buildings now in many _____ (city).
5. Is Caral _____ (ride) his bike?
6. He has two ways of _____ (get) to school.
7. In summer people often go swimming in ______ (river).
8. We need _____ (study) again after school.
9. Listen! A small number of students _____ (talk) in the classroom.
10. They usually ride their _____ (bike) to work.