Danielis the only one of the students in the class that never_____a mistake even whenit is pointed out to him.

My father wanted ________in China.

It is believed that this stamp is________; all others like it have been lost or destroyed. [ ]

（题文）Optimism has a positive effect ________ people’s physical and mental health, ________ which I’m very convinced.

erything ________to you in your bag, not others.