Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

When did Why did Vilnius become the capital of the Commonwealth?
Why did Vilnius become the capital of the Commonwealth?

After 1930 umm rather 1935, who would be forbidden to enter Rhineland?
After 1935, who would be forbidden to enter Rhineland?

If two thirds of the Rhine flows through the Ijssel or wait the Maas, where does the other one third flow through?
If two thirds of the Rhine flows through the Maas, where doe the other one third flow through?