Is there _______ left in the fridge? —Only some eggs.

I think English is ______ useful language, and it’s also ______ important language.

Who are you _______? —— My mother.

___is well known is that Africa had contacts with India and the Red Sea civilizations from the earliest times．

Wow! What a lovely e-dog! Is it yours?—Yes, it’s ______. My father bought it for me yesterday.