----- Nội dung dịch tự động từ ảnh ----- XII. Give the correct form of the word 1. George and I have been friends since.. (child) 2. The police are investigating the...of the painting. (appear) 3. .., he failed the driving test for the second time. (luck) 4. Children should play outdoors and develop their...skill. (society) 5. Peter fell off the ladder, but his....were not very serious. (injure)