你为什么不试试那件衣服?
因为我不想试.
-Why don't you try on that clothes?(或Why not try on that clothes?)
-Because I don't want to.
我终于知道她为什么喜欢那个房间了.
I finally know why she likes that room.
（你记住,在上下文没有明确时间暗示的标志语时,一般时态不做改变.）
你不能那样做.
我知道了.
应该用I know.
理由同上一句.
你为什么不试试那件衣服?
因为我不想试.
-Why don't you try on that clothes?(或Why not try on that clothes?)
-Because I don't want to.
我终于知道她为什么喜欢那个房间了.
I finally know why she likes that room.
（你记住,在上下文没有明确时间暗示的标志语时,一般时态不做改变.）
你不能那样做.
我知道了.
应该用I know.
理由同上一句.