第120页

信息发布者：
fourth
eight
second
thirteen
five
eighteen
seven
second
is
are
aren't
are
1. twelve；ninth 2. first 3. twenty；twentieth
4. fourth 5. eight 6. second 7. thirteen；five；
eighteen 8. seven；second
1. is 2. are 3. aren't 4. are 5. is 6. are
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