1.I have been like this since last week.

自從上個(gè)星期，我就這樣了。

 2.I have been like this since I was 8 years old.  

自從8歲的時(shí)候我就這樣了。

3.I have been like this since you left. 自從你離開后，我就這樣了。

4. He has been like this since he won the first prize in the competition. 

自從他得了一等獎(jiǎng)，他就這個(gè)樣子了。

 5.He has been like this since his daughter dropped out of school. 

自從她女兒輟學(xué)，他就這個(gè)樣子了。