Keys:
二、21---25 ABBCD 26—30 CBCBB 31---35 ACADC 三、36---40 BADCB 41---45ADCAD 四、46-50 BDACB 51-55.DCAAC
五、56.mice 57. fell 58.across 59.fighting 60.is replying 61.careless 62.neighbours’ 63.joining 64.noise 65.exciting 66.How much did weigh 67. Saw 68.How slowly 69.any other animal
70.didn’t have to 71.young look after 72.to read in the sun 73.didn’t fit 74.Be careful with 75.afraid to sleep along any more
六、76.invitations 77.meals 78.enjoy 79.would 80.love 81.date 82.great 83.If 84.polite.
85.carefully
86.utill 87.walk 88.head 89.through 90.lay 91.crying 92.sounds 93.angry 94.Excuse 95.fast 七、（略）
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