1.
problem和question的区别
problem指的是难题,麻烦事,常和solve(解决)连用；
question指的是一般的问题,常和ask,answer搭配.
所以应该是I have an English question (to ask)我有一个英语问题要问.
2.不选D,选B,closed是形容词,关着的.
keep是系动词,keep sth+adj,表示让某物处于某种状态.
Don't keep the windows closed,it's too hot in the room.
不要让窗户关着,房间里太热了.