识记m2u1复习
学案词形转换和1-15 1. unexplained adj.___________ v. ___________解释 n. ___________ 2. puzzled adj. ___________ adj. ___________ v. ___________ n. ___________ 3. frightening adj. ___________ adj. ___________ v. ___________n. __________ 4. possibility n. ___________ adj. ___________ adj. ___________ 不可能的 5. convincing adj. ___________ v. ___________ 6. disappointed adj. ___________adj. ___________ v. ___________ n. ___________