—Mark,you look so tired.—Oh,I didn’t go to bed________it was 12 o’clock last night.
More money ____________ when we use both sides of paper.
---Where were you this morning? ---I _____________ in the supermarket.
Some animals can even see things ____________ in the dark.
Your sweater looks smart. Where _________ you __________ it?
Miss Zhang, the most beautiful teacher, _____________ many flowers and letters these days.