27．My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive . 

I’m sorry that what I said just now has hurt you, but I didn’t do it _____.

The earthquake in Yushu, Qinghai Province damaged many houses and business buildings； _______, it caused more than 1,000 deaths.

—Is there anything I can do for you?—There seems to have been a technical problem—______，that’s what they told me．

I'll be home late, but please don't stay ____ for me.