--Hi, Mary!
-- Oh, it's you. Jack! I ______ you. You look like a star with the glasses.
| A．didn't recognize | B．don't recognize |
| C．haven't recognized | D．hadn't recognized |
-- They are quiet, aren’t they? --- Yes. They are accustomed __________ at meals.
| A．to talk | B．to not talk | C．to talking | D．to not talking |
Occasions are quite rare ____ I have the time to spend a day with my kids.
| A．who | B．which | C．why | D．when |
By the time he realizes he ____ into a trap, it’ll be too late for him to do anything about it.
| A．walks | B．walked | C．has walked | D．had walked |
After studying in a medical college for five years, Jane _______ her job as a doctor in the countryside.
| A．set out | B．took over | C．took up | D．set up |
The president promised to keep all the board members _________ of how the negotiations were going on.
| A．inform | B．informing | C．be informed | D．informed |