Question

【题目】— Who was it __________?

— Thomas Edison.

A. invented byB. invented fromC. invented ofD. invented in

Answer 1

【答案】A

【解析】

句意：----它是谁发明的？----托马斯·爱迪生。1. be invented by sb.由某人发明的；2. be invented in sp.在某处发明的。结合句意可知填invented by；选A。