根据汉语意思翻译句子。
我担心教练会开除我。
I’m afraid that the coach will________ ________ ________．
Professor Xu gave us a talk on how to （保护） the environment last week．
The school will hold many activities to （庆祝） our country's 70th birthday．
Shall we go outside and breathe some （新鲜的） air？
Good ideas．
Liu Cixin is the （作家） who wrote the science fiction novel The three Body Problem．
﹣Dick， is this your T﹣shirt？
﹣Yes， it's （我的）． I looked for it everywhere．