第133页

信息发布者：
on
in
At
On
at
on
in
on
on
at
in
C
C
C
read
1. on 2. in; At 3. On 4. at; on 5. in; on 6. on 7. at 8. in
1. read 2. doing 3. Its 4. goes skating
5. third 6. factories are 7. chatting；doesn't
8. writer；writes
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