1/Give the correct form of the verbs
1.While we....(eat)lunch,the mailman.....(come)
2.Would you mind(close).....the door,please?
3.The trees(plant).....by his father yesterday
4.My mother.....(not eat)dinner yet
5.Lan....(always/talk)in the class
2/Fill in each gap with a suitable preposition
1.My friend,Lan is interested....walking in the rain
2.Peter is keen.....classical music
3.The ambulance will be there....10 minutes
4.We have known each other.....1990