After Ya’an earthquake the school practiced an emergency drill showing the children how to         find their “safe place”____. 

We don't care if a hunting dog smells _______, but we really don't want him to smell _______.

As a student in Senior Three, I must work hard．______, I should take exercise to strengthen my body．

---You don’t seem to be quite yourself today, do you? ---I’m suffering from a cold. Nothing serious, ____.

Can you believe that in _____ a rich country there should be _____ many poor people?