The accident happened ______ a freezing winter morning.[ ]

Your sweater looks very nice. What’s it made__________?-Wool, and it’s made__________ Guiyang.[ ]

We don’t agree with him ________ some ways. [ ]

I phoned you at six yesterday afternoon, but nobody answered.— Oh, I __________a walk with my parents near the river.

The math question is like a piece of cake. He spent five minutes in working it out.