5,The _______ between the two countries has improved significantly. (relate) 6,She spoke _______ about her experiences in Vietnam. (enthusiasm) 7,The factory has caused serious _______ in the local area. (pollute)

5,The _______ between the two countries has improved significantly. (relate)
6,She spoke _______ about her experiences in Vietnam. (enthusiasm)
7,The factory has caused serious _______ in the local area. (pollute)
8,Students need to develop their _______ skills for better learning. (communicate)