On his way home, he found a wallet ____ on the ground, which he picked up and ____ in his schoolbag.

—Robert is indeed a wise man.—Oh, yes.  How I have regretted ____ __his advice?

My family consider ＿＿ a computer, which is considered ＿＿ a great help in our work.

When she came in, she found a stranger ______ at the back of the classroom with his eyes ______ upon her.

 “Did he repair his bike all by himself that day?”  “No, he ___.”