题目

SECTION B Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with word or phrase that best fits the context. It was a Sunday afternoon. I was waiting outside the classroom where my son was about to take a(n)    31  . The boys and girls were busy discussing the exam, while their anxious parents were watching them outside. There was a lot of  32   . I noticed one boy who was standing alone in silence, with fear written all over his face. He did not join other children  33   the discussion and he looked puzzled.