1.She is good at singing ________ (民间的) songs.
答案:folk
2.By the time he died, he was a ________ (百万富翁).
答案:millionaire
3.The President spoke to the nation from a television ________ (演播室).
答案:studio
4.When his mother came in, he ________ (假装) to be doing his homework.
答案:pretended
5.I ________ (认为有重要性) great importance to this research.
答案:attached/attach