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第109页

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the Great Wall

the Bird's Nest

兵马俑

故宫博物院

Have

visited

Have

been

Have

seen

Have

tried

How

long

been

been

gone

did

visit

has seen

hasn't been

C

B

A

D

haven't

seen

Neither

have

I

Has

gone

How

long

has

been

Yes

I

have

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