1. Cal replied with a polite but ______ (坚决的)“no”！
2. The T-shirts are available in a wide ______（各种）of colors.
3. Why don’t you ______（倒）yourself another drink?
4. As everybody knows, cancer doesn’t show any ______ (症状) in its early stages.
5. These days，I can’t fall asleep because the coming final exam is putting great ______ (压力) on me.
