A cough is usually nothing to worry about unless it lasts for ten days ___.
| A．or more | B．instead | C．at most | D．only |
Country life provides him with peace and quietness, ______ what he can’t enjoy living in cities.
| A．that is | B．which is | C．what | D．is for which |
What the teacher said in class set all the _____ a lot.
| A．present students to think | B．students present thinking |
| C．present students thinking | D．students present to think |
By the time I _____the railway station, the train _____.
| A．got to, left | B．reached, had left | C．arrived, had left | D．came, left |
_____ teaching in a university, he also spent some time teaching in a night school.
| A．Besides | B．Except | C．Except for | D．Except that |
Why do you want a new job_____ you've got such a good one already?
| A．that | B．while | C．which | D．when |