How was your journey last week—Very interesting. The people there still keep thecustom _____ the Ming Dynasty, which is different from other areas.

If he continues like this, he will ____________ a stone only to have it drop on his own foot, just as the old saying goes.

He was caught smoking while working in the gas station. So dangerous! He should have been warned of the potential risk.—________, but he ignored my warnings.

You have made great progress recently. —______.

We need to get to the root of the problem______ we can solve it.