面对困难时如果你不放弃，你就应该为自己感到骄傲．
If you never give up when in trouble， you should be yourself．
Our school is going to （ 修建） a new library next month．
To sit （舒适地） ， passengers aren't supposed to eat or drink on the subway．
Thank you for giving me the useful （建议）to learn English．
The more you think about others， the more （有帮助的）you will be．