阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子。
这对老夫妻结婚至今已有五十年了。(marry)
This old couple ____________________________ for fifty years.
今早我收到了一份结婚请柬，所以这个周末我要去参加婚宴。(attend)
I got an invitation to a wedding this morning, so I will ____________________________ this weekend.
我决心申请一份奖学金。(apply)
I made up my mind to ____________________________.
她的儿子正在动手术，她很担心他。(operate)
Her son ____________________________. She is worried about him.
很显然由于金融危机，许多产业正面临着倒闭。(it)
____________________________ many industries are going to close down because of the global financial crisis.