Proper exercise is good for your health._____, too much is bad for it.
| A．Therefore | B．But | C．However | D．while |
Having received ________ training of the MS. Company, he was offered ________ important position in management.
| A．the; an | B．/; an | C．the; / | D．a; a |
Chicago is on ________ Lake Michigan. There is nothing in the world like ________ Chicago meat industry.
| A．the；the | B．不填；不填 |
| C．the；不填 | D．不填；the |
—What do you think of the manager of your company?
—Oh, he is ________ manager who’s pleasant to work with.
It’s ________ pleasure to work with him.
| A．the; a | B．a; a | C．a; the | D．不填; a |
He 1eft word with his secretary that she should keep it___ secret for_____ moment．
| A．the；the | B．the；a | C．a；不填 | D．a; the |
Of all the subjects,I like _________ history best because it gives us_________useful knowledge of things in the past.
| A．the;a | B．/;a | C．a;the | D．a;/ |