Fill in the blanks with the proper words or expressions given below, changing the form if necessary. 1) After the military training, the students became more ____________. 2) My headache must have been caused by my bad ____________. I often stay up too late. 3) Most of us take our family and friendship as our ____________ possessions. 4) She was born ____________, and has been suffering from poor health all the time. 5) He told us that this hot spring's ____________ effect on health is __________. 6) The animals in this zoo look ____________. They are not treated lovingly. 7) The mixture is allowed to ____________ for approximately 3 minutes. 8) The meeting was ____________ to begin at eight o'clock. But only a few appeared on time. 9) Natural disasters further raised people's ____________ of environmental protection. 10) Is AIDS still regarded as a ____________ disease? 11) I finished all the difficult reading materials in 5 hours and felt quite ________. 12) He blamed me so ____________ that I felt hurt and angry.