Derek is a polite boy. Everybody in our class ________ him.

______ are my sister’s pencils and ______ my ruler.

English is very widely used ______ business ______ different countries. [ ]

Thank you for your help. ______ for your help, I wouldn’t have succeeded in my experiment.

________ did your uncle leave his home town?.— Let me see. He _______ for nearly twenty years.