Nancy invited Tom and Ann to dinner, but _____ of them came.

Wherever he is, he makes ______ a rule to give his mother a call every day.

When __________ comes to golf, I know nothing and I have no interest in this match.

. _____ can be enjoyed until you have a deep understanding of the low-carbon lifestyle.

—Kathy and her sister are so alike.—I can’t tell one from ____.