1.On returning home ,she found note

1.On returning home ,she found note --- to the door,reading “call in later”
A.attaching B.attached C.attach D.attaches
2.To keep the town clean,the truck-----garbage is prevented-------entering the town.
A.loaded with；fromB.loading with；fromC.loaded of；from D.loading of ；/
prevent from doing的被动语态是什么?
thanks.

1.B
这张便条（note）是被粘贴在门上的,所以用过去分词表示被动.
find是感官动词,感官动词后面可以接动词原形或动词ing形式,但是,如果这个动词表被动,就要用过去分词.
2.A
the truck loaded with garbage意思是装满垃圾的火车.
火车是被装满垃圾的,所以用过去分词.排除B、D.
“给火车装上垃圾”译成英语是load the truck with garbage.排除C.
第二空用了prevent...from doing sth.这个结构.