Where _____ your pen pal _____ from ?
――What did the Geography teacher ask you? ――The question is, “ Do you know _______?”.
_______ your mind and study hard, and you will be sure ________English well.
Our parents talked about the people and the things _______ they could remember in their middle school last night.
――Dady,when can I join the Basketball Club? ――You can when you _______ up.
――How many children are there in your family ? ――So many there used to be, but now I am_______ an only child.