1-5 ADCBA 5-10 DDDCB 11-15 ABCBD 16-20 BBDCA 21-25BACDA 26-30 BACBD 31-35 CABDC 36-40 BCADD 41-45 DCBBA 46-50 CADCB
四.完成单词
lar 3. veterinarian ring ly idering 7. homeless
hed ng slate ide ramming ying h
五.动词填空
built 2. to use become made 5. are getting be 7. are put
9. works g