Thisrobotissupposedtosavealotoflabor,butitremainsaproblemifit______.
A、isTheprofessorcouldhardlyfindsufficientgrounds_____hisargumentsinfavorofthenewtheory.
Itisnolongeraproblem_______thepoorchildreninthisdistrictcangotoschool.
Therearesomepolicecarsinfront.Whatdoyousuppose_____?
Ofalltheapplicants,______doyouthinkisfitfortheposition?
Theorganizationbrokenorules,but______haditactedresponsibly.