1.I don't know how _____ to London .
By air.
A.would they go B.are they going C.they would go D.they are going
2.I think he ____ to see his mother if he ____ time .
A.will go ,his B.will go ,will have C.would go ,would have D.would go ,had
3.Do you know ___?
A.what the news are B.what is the news C.what the news is
D.what are the news
请多多指教啊```谢谢啦``