Tokyo is much more expensive than Beijing.
东京比北京物价高得多。
A Yes, I like visiting Beijing very much.
A 是的，我非常喜欢来北京。
B So do I. I rent an apartment here. Prices are very reasonable.
B 我也是。我在这里租了一间公寓。价格非常合理。
A Yes, I lived and worked in Tokyo before. Tokyo is much more expensive than Beijing.
A 是的，我以前在东经住，并在那里工作。东经的物价比北京高得多。
B People say rents in Tokyo are higher than London, New York and Paris.
B 人们说在东经租房子比在伦敦、纽约和巴黎贵得多。
A I'm sure that's true.
A 我肯定这是真的。
B But Beijing is more expensive than a few years ago.
B 但是北京的物价也比几年前高了。

Notes注释
1 To talk about prices, for example, rents / rents, you can say: Prices are very reasonable. / Prices are very reasonable or: Rents in Tokyo are higher than London, New York and Paris. / Rents in Tokyo are higher than London, New York and Paris.
要谈论物价，例如，rents /房租的价格，你可以说：Prices are very reasonable. /价格非常合理。或者：Rents in Tokyo are higher than London, New York and Paris. /在东经租房子比在伦敦、纽约和巴黎贵得多。
2 To compare prices now with the past, for example, a few years ago, you can say: Beijing is more expensive than a few years ago. / Beijing is more expensive than a few years ago.
要比较现在和过去的物价，例如，现在和几年前的差别，你可以说：Beijing is more expensive than a few years ago. /北京的物价比几年前高了。

Key phrases and sentences
Yes, I like visiting Beijing very much.
So do I. I rent an apartment here.
Prices are very reasonable.
Yes, I lived and worked in Tokyo before. Tokyo is much more expensive than Beijing.
People say rents in Tokyo are higher than London, New York and Paris.
I'm sure that's true.
But Beijing is more expensive than a few years ago.

是的，我非常喜欢来北京。
我也是。我在这里租了一间公寓。价格非常合理。
是的，我以前在东经住，并在那里工作。东经的物价比北京高得多。
人们说在东经租房子比在伦敦、纽约和巴黎贵得多。
我肯定这是真的。
但是北京的物价也比几年前高了。