根据下列句子及所给汉语注释，在空缺处写出各单词的正确形式（每空一词）。
小题1: Ningxia has some fantastic sights, ___________ (包括) the Sand Lake and Shapotou.
小题2:If I had a million dollars, I’d give it to ____________ (医学的) research.
小题3:You’d better have a first-aid book on a nearby ____________ (书架) in your home.
小题4:Doctors say that the risk of cancer can ___________ (增加) by eating burnt food.
小题5:I don’t think students should be ____________ (允许) to bring mobile phones to school.