The teacher said there were twelve _____ who had failed in the exam.A at all B in all C all in D all in all
_____to nuclear radiation, even for a short time , may produce variants(变异体) of genes in human bodies.
---It is hard to ______ such an unpopular policy. ---I can’t agree more. Not many people will ______ it.
An old saying occurred to me when I was about to take the give-away shampoo ______ there is_______ thing as a free lunch in this world.
With drink and food ____, the prisoner had to walk out of the cave where he was hiding.
_______ educational software can be found in the electronic goods section.