Use "keep in line" in a sentence

1. You keep in line with the caravan, your car the rear guard for bullet proof Kaite

2. The old man has intentionally sent her farther away than the rest, to rake near the cocks of hay, so that she may not keep in line with the others; but she does not fall in with this arrangement, and she toils on as long as the others do, with the same death-like, gloomy countenance