We're tired because we have ________ yin.

In the UK and the USA people often give flowers and cakes as birthday presents. They ________ open their presents at once.

---Do you play computer games? ---No,_______. I don’t like them at all.

---Did you find the small village yesterday? ---Yes, without any difficulty, for it has __________changed over years.

_____, I have to write the words on the paper because she doesn’t know Chinese.