In a debate, you have to be clear of the ______ of the disabled children.

I can’t say which type of tea tastes better. It’s just a（an） ______ of personal preference.

Suddenly we felt the _________atmosphere grow tense as neither of the sides would give in.

He, a Nobelist, made great ______________ to researching in this area.

The twins are of similar _________ in music, though they are quite different in character.