– Why you didn’t handed in your exercise paper?
–Sorry, but I ____ that it should be turned in today.
A．didn’t know B．hadn’t known
C．haven’t known D．don’t know
President Obama has two daughters, _____ able to fit in well with their citizens.
A．both of them are B．none of them are
C．both of whom are D．neither of who is
He is ________that all of us like him very much.
A．a boy so lovely B．a such lovely boy
C．so a lovely boy D．such a lovely boy
I was really anxious about you. You____ home without a word.
A．mustn’t leave B．shouldn’t have left
C．couldn’t have left D．needn’t leave
Tom and Jack are both very clever. ________, Tom is _______ Jack.
A．All in all, as a clever boy as B．In other words, as clever a boy as
C．That is to say, as a clever boy as D．In word, as clever a boy as
--- Please _______ us in the discussion.
--- I’d like to, but I’m _______ busy at present.
A．attend；too B．take part in；much
C．join；much too D．join in；too much
