------ Look, where are you going ? ------ Oh, I’m terribly sorry. ______.
Some doctors were sent t?the front where medical workers were ___.
The student, ____whom all the teachers are pleased,is very strict ___himself ___ everything.
Guangdong lies___the south of China and Fujian is___the east of it. Hainan is__the coast of the mainland.
We offered him our congratulations_____his passing the college entrance exams.
—— How long has the bookshop been in business? —— ______1987.