blister

"What irritation causes you to be so moody?"

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

"The rain jacket is made of an impermeable material, so you won't get wet even in a heavy downpour. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The enzyme lactase helps digest lactose; lactose is the substrate in this reaction. "

"My baking skills have developed significantly since I started taking the online course. "

"Construction is underway on the new bridge."

"The contractor is building a new addition to the school library. "

"The florist is packaging the flowers carefully for delivery. "

"The infection spread quickly through the classroom after one student got sick. "

"Inspect the system for leaks."

"The sudden silence during my presentation began to embarrass me, making me forget what I was going to say next. "