题目内容：
根据以下材料，回答题根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。
A:Hello,Betty.Theexaminationisover.Whatareyougoingtodotomorrow?
B:I'mnotsure.51.__________?
A:IwanttogototheScienceMuseum.
B:Whydoyouwanttogothere?
A:52.__________
B:Thatsoundsinteresting.
A:53.__________?
B:Yes,I'dloveto.
A:Great!I'msurewe'llhaveagreattime.
B:54.__________?Iwanttotakesomephotos.
A:I'mafraidyoucan't.Wearenotallowedtotakephotosinsidethemuseum.
B:Gotit.Oh,55.__________?
A．.Atthegateofthemuseum.Besuretogetthembefore9o'clock.
B:OK.Seeyouthen.
__________
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