Insert a, an or the if necessary: . . . fog was so thick that we couldn't see . . . side of . . . road. We followed . . . car in front of us and hoped that we were going . . . right way.

The fog was so thick that we couldn't see the side of the road. We followed the car in front of us and hoped that we were going the right way.

Dịch: Sương mù dày đặc đến nỗi chúng tôi không thể nhìn thấy hai bên đường. Chúng tôi chạy theo chiếc xe phía trước và hy vọng rằng chúng tôi đã đi đúng đường.