Each new way of looking at a situation deepens our understanding and makes ______ easier to discover new possibilities.
| A．this | B．it | C．one | D．that |
——How time flies! It's already twelve o'clock.
——Oh, really? I it at all.
| A．don't realize | B．didn't realize | C．haven't realized | D．hadn't realized |
She ought to stop work; she has a headache because she too long.
| A．has been reading | B．had read | C．is reading | D．read |
. ——May I use your phone?
—— . I'm expecting a call.
| A．That's OK | B．With pleasure | C．No, thanks | D．I'm afraid not |
-----He promised to come to see you.
----But he _____. I’ve been all alone.
| A．didn’t | B．wouldn’t | C．hasn’t | D．won’t |
It has been announced that candidates ______ remain in their seats until all the papers have been collected.
| A．can | B．will | C．may | D．shall |