Mike, please be quiet, or the other students hear me clearly.

Which one did he choose from those watches? — He said he _______ the one made in Shanghai.

Have you ever been to Shanghai?－Yes. I ______ there with my father last year.

Do you want to be healthy? ______. Smiling can help you stay healthy.

I thought my deskmate would be _______ for class, but he was late again. [ ]