选词填空，从方框中选择正确的单词或短语，将其适当形式填在空白处，使对话完整、正确。

scientist, only, watch, another, think of

A: Hi, Jeff! What did you do last Sunday?

B: Last Sunday? I  a robot show.

A: Where was the robot show?

B: It was in the museum.

A: What did you  it?

B: It was wonderful. During the show, we could ask the  some questions about robots.

A: That sounds great. Will there be  robot show this Sunday?

B: Yes, there will be another robot show this Sunday. Would you like to go with me?

A: Yes, I'd like to. How much is the ticket to the show?

B: The ticket is  two dollars.