27.The __________(警卫) in our school are very strict.　

26.Since we are ______(成年人),we must do whatever we can to help our parents.

25.On climbing up to the hill, he found wild flowers______(长)here and there.

24.He entered the hall, ______(组) of students following him.　

23.The pupils offered ___________(问候) to the guests.　

22.Put on your______(手套),or you'll get burnt.

21.Look out! ______(杯子)made of______(玻璃)are easy to break.

20.You______(眼镜)need mending

19.______(希腊)is an ancient country with a long history.

18.To our______(很)surprise, such a little boy　 can speak five different languages.