Itisnolongeraproblem_______thepoorchildreninthisdistrictcangotoschool.
A、thatProfessor Wang , _______ for his informative lectures, was warmly received by his students.
Theprofessorcouldhardlyfindsufficientgrounds_____hisargumentsinfavorofthenewtheory.
The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.
Hedoesn'tknowwhattosay,foritisthefirsttimethathe______withagirl.
Theorganizationbrokenorules,but______haditactedresponsibly.