他说话时的自信让人无法怀疑他的决定。

His ___sureness when speaking made it impossible to doubt his decision.

她说话的口气中带着一种确信无疑的坚定。

There was a tone of ___sureness in her voice that left no room for doubt.

他在训练中投篮的准确性给教练留下了深刻印象。

The ___accuracy of his shooting impressed the coach during practice.