How long will it be until President Hu Jintao makes another visit to Russia为什么不选until?

How long will it be until President Hu Jintao makes another visit to Russia为什么不选until?
How long will it be until President Hu Jintao makes another visit to Russia为什么不选until?

How long will it be until President Hu Jintao makes another visit to Russia为什么不选until?
make和be都是动词 一句话里不能有两个动词的...until能做介词和连词,所以这还是一句话 这个位置应该填什么先行词之类的吧...