Look out! Don’t get close to the house________the roof is under repair.

His shop was so well managed that he sold in just 5 months ________ his competitor sold in a year. 

She thought I was talking about her daughter，________，in fact，I was talking about my daughter.

I recognize her __I met her at the airport, although we haven’t seen each other for ten years.

At the beginning of a speech, it is very important to grab the audience's attention and make them interested in ____ you have to say．