I like junk food so much because ______ really delicious.

My keys are in my bag.             keys under that desk aren't mine.

Gary: I can’t find my pen.   Nina: Is the one on Jack’s desk 　　　? Gary: Yes, Thank you. 

— Who will teach _______ oral English next term? Can it be a new teacher?— Perhaps. But our head teacher hasn't told us ________ .

--- Are these postcards ________, Millie? ---Yes, they are____________.