Zhang Guorong’s singing career _________ about over 20 years. It was his ________ appearance at singing in public.
Many wild animals don’t have a safe place to live, ___________people are taking away their land and forests.
We stayed there and watched the opera ______ an hour.
Look , this year the player are training _________.
The library is __________ than the classroom.
It’s _____ good idea to spell and pronounce new words aloud every day.