Students should give back the books to the library on time.保持句意不变Students ____ _____the books

问题描述:

Students should give back the books to the library on time.保持句意不变Students ____ _____the books

Students should give back the books to the library on time.保持句意不变Students ____ _____ the books to the library on time.应填:should return解析:give back = return 归还