Human facial expressions differ from those of animals in the degree ______ they can be controlled on purpose.
74. All the nations should put _____ the misunderstanding between each other. If each nation does so, this world will become a peaceful and lovely garden.
73. The general asked his men to push _____ so they might overtake the retreating(败退的) enemy troop.
72. At the beginning, I had some difficulty with my English, and my teacher pulled me ______.
71. Such a small man can’t _____ reach the balloon one metre higher than he.
70. These books are _____ written for those who learn how to use computer. It’s an ABC of computer learning.