27.After the bell rings, which indicates the ending of the exam, you ______stay where you are until all your papers are collected.
A short, thin woman, past middle age, visited the manager and applied for the job.
The next day, the group of villagers had not gone very farthey entered a very narrow passage betweentwo mountains.
Mr Black, who we all admire, is a kind but strict teacher.
—Does your father smoke? —,it's 2 years since he.
Do you know theof the saying I just quoted?