No matter how careful you are, there will always be a degree of risk ______.

(单选题)39.（ ） (单选题)38.（ ） (单选题)There ______ a concert in the school tomorrow. (单选题)Whose desk is this? It’s ______. (单选题)My brother can ______ very well, he is good ______ singing. (单选题)We played ______ at nine o’clock in a music lesson. (单选题)I ______ in this school for 10 years. (单选题)Can I have ______ postcards? (单选题)They are reading about an English boy ______ the newspaper. (单选题)I plan to build an unusual house. It ______ out of old thing