单选题：To be a good teacher, you need some of the gifts of a good a

To be a good teacher, you need some of the gifts of a good actor: you must be able to 67 the attention and interest of your students; you must be a 68 speaker,with a good, strong, 69. voice which is fully under your control; and you must be able to 70 what you are teaching in order to make its meaning clear. 71 a good teacher and you will see that he does not sit still 72__ his class: he stands the whole time when he is teaching; he walks about, using his 73, hands and fingers to help him in his explanations, and his face to express feelings.Listen to him, and you will __74_ the loudness, the quality and the musical note of his voice always 75 according to what he is _76 about. The fact that a good teacher has some of the gifts of a good actor doesn't 77 that he will indeed be able to act 78 on the stage, for there are very important 79 between the teacher's work and the actor's. The actor has to speak words which he has learnt by heart; he has to repeat exactly the _80_ words each time he plays a certain part; _81 his movements and the
ways in which he uses his voice are usually ._82 beforehand. What he has to do is to make all these carefully learnt words and actions seem 83 on the stage.
A good teacher __84_ in quite a different way. His students take an active part in his 85 : they ask and answer questions; they obey orders; and if they don't understand something, they will say so. The teacher therefore has to suit his act to the needs of his students.
He cannot learn his part by heart, but must 86 it as he goes along.阅读以上文章，回答题请在（67）处填上最佳答案。 A． pay
B． hold
C． give
D． know