____ he will come or not is still unknown.
| A．If | B．Where | C．That | D．Whether |
___ to give up smoking, he threw away his _____ cigarettes．
| A．Determined; remained | B．Determined; remaining |
| C．Determining; remaining | D．Determining; remained |
By the time he retires, professor Baker _____ for almost forty years．
| A．will have taught | B．had taught | C．has taught | D．is teaching |
The managers discussed the plan that they would like to see______ the next year.
| A．to carry out | B．to be carried out |
| C．carried out | D．being carried out |
Mr．White, who comes from ____ European country, has formed _____habit of attending ____ church on Sundays．
| A．an; /; the | B．a; a; a | C．an; the; / | D．a; the; / |
Successful people always make ________ preparations for any potential setbacks.
| A．final | B．urgent | C．abrupt | D．adequate |