He hesitated about the brake, otherwise the accident ______.

His parents always like to compare him _____ his classmates. [ ]

It’s said that the famous scientist will give us _________advice on maths study. —__________good news! I’m not good at it.

How was your day off during the Qingming Festival?— Pretty good! We Xu Xiaoxuan’s former home.

They aren’t our books. Are they___________?