Question

3. If Mr Dewey    present, he would have offered any possible assistance to the people there.

A. were      B. had been

C. should be   D. was

Answer 1

3.    B考查虚拟语气。句意：如果杜威先生当时在场的话，他就会尽一切可能帮助那里的人们。根据主句中的would have offered可知，这是对过去的虚拟，故条件句用had done形式。