_____ that he isn’t adequate to the present job, he devotes all his spare time to studying professional knowledge.
| A．Concern | B．To concern | C．Concerned | D．Concerning |
— Look! It _____________ again.
—Yes. This is the third rain we ____________ this month.
| A．will rain: had | B．is raining; have had |
| C．rains; had | D．is going to rain; have had |
The most frightening words in English languages, as it is, are "Out computer is ______________."
| A．down | B．out | C．away | D．off |
Either you or one of your students___________ to attend the meeting that is due tomorrow.
| A．is | B．are | C．have | D．be |
—I like the yellow new Beetle. —A smart car but we can’t afford_________ for the time being.
| A．one | B．that | C．the one | D．it |
I don't understand what the engineer means, but I’ve got_________ rough idea of____________
project plan.
| A．the; a | B．the; 不填 | C．a; the | D．不填; the |