----I’m sure Andrew will win the first prize in the final.
----I think so. He ______for it for months.
A. is preparing B. was preparing
C. had been preparing D. has been preparing
The report said a car went out of _________control on a highway _________south of the city and rushed into a river.
| A．the;the | B．/;the | C．the;/ | D．/;/ |
—Did you happen to see _________ black and _________ white cat?
—Is she missing?I told you to take care of her.
| A．the;the | B．the;/ | C．a;/ | D．a;the |
—Would you mind giving your advice on how to improve our business management?
—if you make ____ most of the equipment, there will be ____ rise in production.
| A．不填；不填 | B．the；a | C．不填；a | D．the；不填 |
Young as he is, David has gained ____ rich experience in ____ society.
| A．the; the | B．a; 不填 | C．不填；不填 | D．不填；the |
Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ a great service.
| A．不填；a | B．the；a | C．不填；不填 | D．the；不填 |