根据下面的对话情景 ，在每个空白处填上一个恰当的句子，是对话的意义连贯、完整

Jim: Hi, John！The weekend is coming. 小题1:           ?

John: Yes, I’d love to. 小题2:             ?

Jim: What about the Palace Museum? There is a great show.

John: That’s really a wonderful place to visit. 小题3:_______________ ?

Jim: We can see fine works of art there.

John: That sounds great. How can we go there?

Jim : Then best way is to take the underground. It takes only 20 minutes.

John: All right. 小题4:                   ?

Jim: We will meet at my home at 8:00  a. m. tomorrow ?.

John:  Ok, See you tomorrow.

Jim: 小题5:       .

造成常压精馏塔产品甲醇碱度不合格的原因有（）。

A、粗甲醇中的羰基化合物在预精馏塔未分解完

B、粗甲醇水含量高

C、加碱量过大

D、常压精馏塔负荷过大