The chairman thought ________ necessary to invite Professor Smith to speak at the meeting.
A. thatB. itC. thisD. him
She was about to tell me the secret ________ someone patted her on the shoulder.
A．asB．untilC．whileD．when
We never allow ________ in the office．Who allows him ________ here?
A．smoking; to smokeB．smoking; smoking
C．to smoke; smokingD．to smoke; to smoke
It was ________ hot weather that he went for a swim.
A．such aB．suchC．veryD．very a
This is a very interesting book．I’ll buy it ________.
A．no matter how it may costB．how may it cost
C．how much may it costD．however much it may cost
—Could you go to see a film with us at 7 this evening?
—Sorry. I ________ a lecture given by a young CEO who graduated from our school.
A．am attendingB．have attended
C．will be attendingD．am about to attend
