upcharge

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

"After school, my family went to a restaurant for dinner. "

"My mom made a delicious pizza with mozzarella cheese. "

"Our airline tickets cost twenty dollars more than we expected because we had to pay a fuel surcharge."

"Do you need a gift for that special someone?"

"The teacher assigned additional homework for the weekend. "

"The heavy overcharge of homework assignments made it difficult for students to have a social life. "

"They completed the first series perfectly."

"The mechanic fixed the broken bicycle chain. "

"There will be a charge of five dollars."

"I say I did him a service by ending our relationship – now he can freely pursue his career."

"You inflate a balloon by blowing air into it."