--- How many students are there in the classroom? --- ______.All of them are practicing _____ the new song in the music hall.
Travelling is interesting but ______________.
All of my classmates have __________ fond of the new teacher since he came to teach us.
I __________ read books rather than go to the countryside this weekend.
As is known to all, earthquakes are ___________ disasters _________ can destroy buildings and kill people.
The speaker _________ his voice to make herself heard.