We must do something to protect the earth, ____we will lose our home.
词义替换。—What do you often do in your spare time?—Play basketball.
词义替换。—Would you mind passing me the book?—Of course not. I’ll do it right away.
Tom likes helping others, so he is a ________boy.A. careful B. clever C helpful D. cute
--Is your brother’s name Tom? --- Yes , ____ is.
---How do you go to school every day?---________.