There are _______ visitors to the wetland park, and the number is becoming _______ now.

Hurry, Mike! The bus is coming. —Wait a moment, please! Let me see if there’s __________ left.

Fred plays _____ piano after _____ supper every day.

He doesn’t tell me when he_______ . I’ll telephone you as soon as he______.

It’s hard for them to walk _____ the forest. [ ]