it is normal for parrots to talk, Einstein, a small bird, is unusual in that whenever she hears a new word or sound, she repeats it over and over until she masters it.
| A．As | B．When | C．While | D．Since |
—Pity you missed the lecture on nuclear pollution.
—I________it, but I was busy preparing for a job interview.(2011·福建)
| A．attended | B．had attended |
| C．would attend | D．would have attended |
I ________ through that bitter period without your generous help.(2011·陕西)
| A．couldn't have gone | B．didn't go |
| C．wouldn't go | D．hadn't gone |
We ________John's name on the race list yesterday but for his recent
injury.(2011·江西)
| A．will put | B．will have put |
| C．would put | D．would have put |
It ________ be the postman at the door.It's only six o'clock.( 2011·江西)
| A．mustn't | B．can't | C．won't | D．needn't |
My father insisted that every minute ________ made full use of ________ the work well.
| A．be；to do | B．has been；doing |
| C．be；doing | D．has been；to do |