Heroes are those who，given a choice between doing the right thing at great personal cost or the wrong thing for great personal benefit，＿＿＿＿the former.
| A．choose | B．chosen | C．choosing | D．to choose |
Please arrange ___ first, and then let him have a good rest.
| A．him a room | B．a room for him | C．him of a room | D．a room with him |
Students should always remember theory and should not at all be ___ from practice.
| A．divided | B．stopped | C．separated | D．operated |
Ten years later, the prisoner of war ___ free and regained his ___.
| A．was set, freedom | B．was set, free | C．was set, freely | D．set, freedom |
He demanded ___ here in time.
| A．us to get | B．that we arrived | C．we arrive | D．that we had reached |
As these goods are of different styles, the prices ___ 100 yuan to 9 yuan.
| A．vary | B．come from | C．range from | D．differ |