English is a difficult language to ----.A speak B be spoken

English is a difficult language to ____.A speak B be spoken
为什么There are some trees to be planted要用被动语态而 There is some thing to eat?不是被动的呢?
chentiangemalc说了和没说一样？原因？
什么都知道的人 There are many spelling errors.College English Test is nothing,in spite of your passing.