By the time the fire-fighters arrived, the fire had been put＿＿＿by the teachers and the students.
| A．down | B．away | C．out | D．off |
There will be plenty of other new jobs, we probably can’t even guess.
| A．some of them | B．some of which | C．some of that | D．some of what |
The number of speech pathologists(who help people who have problems speaking)double by the year 2012.
| A．is expected to | B．are expected to | C．expects to | D．expect to |
They have got lost, or had an accident.
| A．can | B．might | C．must | D．mustn’t |
But often the drivers just go by, taking the human traffic for granted.
| A．sign | B．symbol | C．signal | D．mark |
Webster his American Dictionary of the English Language, which first appeared in 1828.
| A．is best known for | B．is most known for |
| C．is best known as | D．is most known as |