问题
选择题
Mother ______ the baby gently on the bed and then bent down to pick up the toy _____ on the ground.
A．laid; lying
B．laid; lie
C．lay; lying
D．had laid; lay
答案
答案：A
本题考查动词及非谓语动词。题中laid为lay的过去式，表示“放，搁”；lying on the ground作定语，修饰名词the toy。故选A。