Complete the sentences with the given words in their proper forms (用括号中所给单词的适当形式完成下列句子。每空格限填一词)  (共8分)
One of my cousins works as a _______ in that company years ago. (manage)
A friend of _______ is going to visit us during the Spring Festival. (we)
The _______ Olympic Games was held in 2012 in London. (thirty)
It rained so _______ that we had to change the date of our outing. (heavy)
My cousin said he was _______ enough to be chosen as an exchange student. (luck)
Several wonderful _______ were made at the national conference. (speech)
We _______ the question so excitedly that we couldn’t go to sleep last night. (discussion)
Many _______ houses have been built for the tourists in this area recently. (wood)