The book is written in _____easy English _____beginners can understand.
To Daniel’s parents’ surprise, the living room was clean and tidy, with the window ______and fresh air ______in.
William spends too much time in Internet cafes, ________he either plays games or chats on the internet.
Eric felt the bag brought back by his parents, curious to know what it .
Family fights are the things _______I feel upset.
— Have you forgotten ___________ a ruler from Wang Ling?—Oh, yes. But I’ll remember _________ it to her tomorrow.