They practice________the piano after school.
---What did he _______ just now? ---Sorry, I didn’t catch his words. I _______ about something else.
---Could I use your dictionary to look up some new words ?---OK, ________.
---Do you mind my listening to the music?---____. The boy is sleeping.
The old scientist devoted all her time she had ____ the western parts of China.
---I haven’t seen Lucy for three days. Is she ill?---______. Her sister told me she was in hospital.