---Shall we visit the Shanghai World Expo second time in the vacation? ---Good idea. Some

问题补充：

---Shall we visit the Shanghai World Expo second time in the vacation?

---Good idea. Some pavilions didn’t open first time we went there.

A. the; the

B. a; the

C. 不填; the

D. a; a

答案：

A. the; the

(答案→)B. a; the

C. 不填; the

D. a; a

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