—__________ T-shirt do you like better, the red one or the blue one?—I prefer the red one.

---She’s never been to Shanghai, ____________? . --- ___________. But how she wishes to go there again.

I need your help because I don’t know __________.

—He made few mistakes in his speech, ______________?   —____________, his perform is wonderful.

Most of my classmates would rather ______ on weekends than just ________ at home.