--- Has James finished his report on his Enquiry Learning yet?\ ---- I’m not sure. He _____ on it last week.
Tom thinks _____ important to get to know his students well.
_____ is known to us all _____ Lu Xun is famous for his great works_____ a great writer.
When he left _____ college, he got a job as _____ reporter in a newspaper office.
We _____ a word unless she asks us_____.
It was _____ that I didn’t like to leave my room.