While I was walking along the lake, I saw some fish _____out of the water.

Mr. Li, let’s go fishing this weekend with Lao Wang, shall we?—I’d love to, but nobody knows if he _______ free then.

_______ do you go to the English corner to practice your spoken English? —Never.[ ]

In China, people walk _____ the street..[ ]

He likes low-carbon life. He lives in the house ________ he built himself out of trash.