ke to have visitedthe Palace Museum last week, but something unexpected _______ to my father

we must ___ to the public the simplefact that drug are dangerous.

We are going to hold a sports meeting tomorrow——– __________ it rains?

It`s already 10 o`clock. I wonder how it thatshe was two hours late on such a short trip.

26. Only after we left the building ______ how dangerous the situation had been.