1．Tom gained (获得)friendship and experience from the local residents，working with them for three years.
2．When my sister fails the exam，she always drowns(淹没)her sadness in tears.
3．They have three small children to bring up so for obvious(明显的)reasons they need money.
4．People in the street wept (哭泣)with joy when peace was announced.
5．She admires(钦佩)the teacher very much for he is a learned and kind man.
6．He was awarded (授予)the first prize in the competition.
7．Stepping into the gate of the school always reminds(提醒)me of the responsibility I carry as a student.
8．As we know，it is difficult to get used to another country's customs(习俗)．
Ⅱ.单句改错
1．Obvious，students are terrible at adjusting their sleep cycles to their daily schedule.Obvious→Obviously
2．Be careful when crossing the bridge or you will fall into the water and get drowning.drowning→drowned
3．The festival is in memory for the great poet Qu Yuan.for→of
4．This story reminds me my experience when I was a middle school student.me后加of
5．I'm writing this letter to express my apology for you for not writing you back in time.第一个for→to
6．I'll keep my words，and I'll tell him everything.words→word
7．Nicole promised to come yesterday，but she hasn't turned out yet.out→up
8．The day we have been looking forward to coming at last.coming→comes
