在调动用户积极性方面有_________、________两种形式。
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我听说你去过欧洲许多地方。
A. I heard you been to many places in Europe.
B. I heard you've been to many places in Europe.
package tour
A. 包裹旅游
B. 自助游
C. 跟团游
D. 自驾游
旅行社
A. tour agency
B. tour agent
C. place of interest
D. scenic spot
do-it-yourself tour
A. 自助游
B. 自己游
C. 自驾游
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