roadblocks

"My friend told me there was something in the box, but I didn't know what it was yet. "

"You can create the color orange by mixing yellow and red."

"The family owns several, a small plot of land behind their house. "

"The morning classes at school begin at 8:00 a.m. "

"The heavy snow was a major impediment to getting to school on time. "

"The traffic is slow during rush hour."

"The government decided to raise taxes to fund new schools. "

"The fallen tree obstructs the road, making it impossible to drive through. "

"I brush my teeth regularly to prevent them from turning yellow."

"Construction is underway on the new bridge."

"A big obstacle to understanding the manual was that it had been poorly translated from the Japanese."

"The school has strict regulations about mobile phone use during class. "