The experiment shows that proper amounts of exercise, if _____regularly, can improve our health [ ]

Constant practice has erased my accent to a pointmany people think I’m a native speaker.

This English dictionary is expensive, but it is of ________.

are running __ clothing shop—Yes, but I don’t want to make it ___shop only for rich people.

She is only a child, so there is no need ______ her so much stress.