concealing

"My knowledge of history helped me understand the current political situation better. "

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

"Her constant concealment of her phone caused her parents to worry about what she was hiding. "

"My daughter's teacher is very kind and helpful. "

"Asphalt, composed of oil and sand, is a widely used material for roads."

"The vibrant foliage of the oak trees in the park provided a beautiful backdrop for our picnic. "

"The new recruit was a strong and effective soldier, ready for basic training. "

"The boy was fidgeting in his chair during the long test because he was nervous. "

"He is a student of life."

"He tried to conceal the truth about his health."

"He tried to conceal the truth about his health."

"The complicated instructions on the new software difficult me from completing the project on time. "