49. He goes _____ at 8 a.m. and comes _____ at 5 p.m. Today he is _____.
Mr.Wang ______ two boys to send the sick boy to the nearest hospital.
My teacher's rich knowledge of science ______ my decision ______ study science.
There is reason to believe that most writers have difficulty in ______ the opening paragraphs of their papers.
When and where will it suit your ______ for our next meeting,Mr.Brown?
Many questions were asked,particularly ______ the cost of the new plan.