He put his book down and ( )me pick up my pen.

问题描述:

He put his book down and ( )me pick up my pen.
He put his book down and ( )me pick up my pen.A.help.B .helped c.helping D.helping

B
helped
这句话有先后两个动词,第一个put就是动词put的过去式,第二个help和它呼应,也用过去式helped.