_____ you have _____ homework to do every day?

I’ll try it again．Never in my life _____ such a particular difficulty．

Have you ever been to the Qinghai Lake, Jim?—Yes. That’s the most fantastic place _______ I’ve ever visited.

If you have any problem, you can _________me for help. Which is wrong?

I don’t want _____ of the shirts. Please show me _____.