根据对话内容及所给首字母提示,用恰当的单词补全对话. A:Hi ,Bill Welcome to my room . B:Thanks .Your (1)r_____ is nice .What's that (2)o_____ the table A:It's my computer .Bill ,take a seat . B:OK ...But (3)w_____ is your chair A:Oh ,sorry ,it's here .It's (4)u_____ these books . B:Are these books yours A:Yes ,(5)t_____ are .I like books .