Complete the following statements:

1. Math.Round(2.876, Int(1.1)) is evaluated to ..
2. age = .... (txtAge.Text) + 1
3. The last index in gymArray is computed using ...
4. is the library that allows a VB program to be integrated with a txt file.
5. isNumeric function is evaluated to . if the given argument is a text
6. .. is the best control to allow the user to select one choice only from a list of options.