A sign appeared in the air about six feet away.

The first signs usually appear when children begin to walk.

The next day a sign appeared in left field "George, we are behind you all the way."

The first signs of growth will appear in 1 to 3 weeks.

Over the last month, signs of an economic bottom have appeared.

On the following day, the first clear sign of danger appeared.

I wondered how much time had gone by since the sign first appeared.

Of course, the sign appears in whatever language the reader knows.

Interest soon died down after no sign of a takeover effort appeared.

These signs usually appear by 3 days to a month after exposure.