( ).--I saw Betty go to Grandpa Li's home just now. --Yes.She’s often seen _________ the old man with the housework.. A:help B.to help C.helps D.helped答案选择B.这道题的意思我都没弄懂,更不会选择了.它是一个固定搭配吗?还是什么其他的,麻烦讲清楚一点.
问题描述:
( ).--I saw Betty go to Grandpa Li's home just now.
--Yes.She’s often seen _________ the old man with the housework..
A:help B.to help C.helps D.helped
答案选择B.这道题的意思我都没弄懂,更不会选择了.
它是一个固定搭配吗?还是什么其他的,麻烦讲清楚一点.
答