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）：

【1】Grace gave the room a thorough_____this morning, (clean)

【2】Bob is good at_____. He often makes more money than others, (busy)

【3】The_____time I flew on a plane, I was really nervous, (one)

【4】Everyone should learn to speak to others_____. (polite)

【5】We will eat some of the fruits and_____the rest, (freezing)

【6】She didn't sound_____ when I told her the news, (surprise)

【7】Let's take the lift up to the restaurant on the_____floor, (twenty)

【8】He felt rather_____lying in the sofa, (comfortably)

【9】Make_____at home, everyone. (you)

【10】I have stayed here for two_____. (month)