13.　　 He came in __________ a smile __________ his face.

12.　　 What were you doing when Helen called __________ see you last week? I was __________ the greengrocer's.

11.　　 I can see a horse eat grass __________ the field from here.

10.　　 Be polite __________ others，will you?

9.　 The baby was having a ride __________ his pram at this time yesterday morning.

8.　 Suddenly one __________ the bags fell __________ the truck and landed __________ the middle of the road.

7.　 Look! There's a donkey walking __________ the road.

6.　 Many happy returns __________ the day!

5.　 My birthday was the day __________ yesterday.

4.　 Sue wants a big bunch __________ flowers.