Question

1.Do you mind_____your computer for a while 选择题

选择c my using 为什么啊 为什么是my?为什么+ing 形式
2.the e-mail Jack had looked forward to __last night at last and he was very happy
选择B arrived 为什么不加ing

Answer 1

my是形容词性无主代词，using是动名词，my using 就相当于个名词词组，mind后面可以跟名词mind sth.，当然这句话还可以说Do you mind if I use your computer for a while? mind后还可以跟doing形式。
这个题跟The days we looked forward to (came) at last.一样，算是个陷阱题，the email做主语，Jack had looked forward to是定语从句做定语修饰the email，Jack一直盼望的邮件，昨天晚上终于到了，主干部分就是the email came.

Answer 2

因为 mind 后加名词mind doing sth,my using 就是名词，第二题是定语从句把jack 到 to 括起来是从句部分 翻译成“jack期待的邮件”

Answer 3

你要看是被动还是主动啊，有时候还要看词组搭配