I don’t know _____ he will come or not. _____he comes, I’ll tell you.

We are now enjoying the cool air in the room ____, the farmers are harvesting crops in the hot sun [ ]

Mary thought highly of the painting, but to Mr. Smith’s _____ eye, the painting was terrible.

I am used to ________ my hair in the morning.

I could never_________ such a person ________ always complains everything.