The plan _____ just because people were unwilling to cooperate.

I haven’t been home to see my parents for two weeks; I _______ them.

Achieving a high degree of proficiency in English as a foreign language is not a mysterious ________without scientific basis.

As for diet, Michael Jackson chooses vegetables and fruit in ______ to any kind of meat.

 The committee asked for these suggestions to be ______ on paper, so that they might study them further.