一、单句语法填空
1.The trees 
(blow) down in the storm have been moved off the road.
答案blown
2.When I returned there,I found my bag (go).
答案gone
3.Before driving into the city,you are required to get your car (wash).
答案washed
4.When we finally reached the service desk,we heard it (announce) that there were no more tickets left.
答案announced
5.The old couple often take a walk after supper in the park with their pet dog (follow) them.
答案following
