（急）谁能帮我把这段英文里的语言点,就是单选里面的那种找出来?

（急）谁能帮我把这段英文里的语言点,就是单选里面的那种找出来?
Prison Break star Wentworth Miller has refused an invitation to a film festival in St Petersburg in protest over Russia's new anti-gay laws.
"It would make me happy to say yes," he wrote in a letter to festival director Maria Averbakh. "However, as a gay man, I must decline."
Wentworth, who was to be honoured at the festival, said he was "deeply troubled" by attitudes in Russia.
The new laws ban the promotion of gay, lesbian or bisexual issues.
In June, the Russian parliament overwhelmingly backed a bill which prescribes heavy fines for anyone organising a gay pride event or providing information about homosexuality to people under 18.
"I am deeply troubled by the current attitude toward and treatment of gay men and women by the Russian government," wrote Wentworth, 41, in a letter posted on GLAAD's (Gay and Lesbian Alliance Against Defamation) website.
"The situation is in no way acceptable."
"I cannot in good conscience participate in a celebratory occasion hosted by a country where people like myself are being systematically denied their basic right to live and love openly."
就是按照高中水平把里面一些像单选里面那种语言点,找出来,然后解释下这里为什么要用这种比如ING形式或ed或什么什么的,高三水平就可以.因为我要做的就是找几个语言点问人,然后解释下为什么要这样用
能解释清楚的加分啊啊啊啊

in protest over sth 反对.
It would make me happy to say yes 虚拟语气 如果不是虚拟语气就应该是it will make me happy to say yes.
Wentworth,who was to be honored at the festival
who引导的从句,同位语从句.
be to do sth=be about to do sth 打算做某事
back a bill 支持一项法案
back a bill which prescripes heavy fines.
which 引导的是定语从句,先行词是bill
I am deeply troubled 这里是被动语态 trouble也可以做动词意思是烦心.
wrote Wentworth,41 in a letter posted on GLAAD's website.
posted on GLAAD's website 过去分词后置当定语修饰 letter
a celebratory occasion hosted by a country.
hosted by a country.也是过去分词后置当定语修饰a celeratory occasion
where people like myself are being systematically denied their basic right to live and love openly
是定语从句修饰a country
其中 are being denied是被动语态的现在进行时形式.