---- I will come to attend your lecture at 10:00 tomorrow.---- I’m sorry, by then my lecture will have ended and I _____ in my office.
There are many other examples _______ the development of Chinese writing.
Listen! His family must be quarrelling, _______?
More than one _______ the people heart and soul.
This problem may lead to more serious ones if _______ unsolved.
The Chinese language _______ many Western languages _______ it uses characters which have meanings and can stand alone as words.