71.  The color of their skin, their facial and physical features, the clothes they wear and the manner in which they speak may cause immense effects when we make prior assumptions.

72.  When he played the Guqin, his facial expression was serene and solemn .

73.  When we look at someone, there are always some prejudgments that come to our mind.

74.  The color of their skin, their facial and physical features, the clothes they wear and the manner in which they speak may cause immense effects when we make prior assumptions.

75.  When he played the Guqin, his facial expression was serene and solemn .

76.  When she was drinking, she found me.

77.  When it came to her major, her tone is very natural, without any dissatisfied.

78.  The problem is when we select elective courses we won't choose science courses but they especially the boys can choose ours.

79.  My dorm mate gradually told us some interesting things in the course and when she finished the homework successfully or worked out some difficult question she was excited more than ever.

80.  When I was in senior high, I had to study math, but it wasn't my type.