------the accident,I deeply felt afraid.是用Think back to 还是 Thinking back to,为什么

问题描述:

------the accident,I deeply felt afraid.是用Think back to 还是 Thinking back to,为什么

用thinking back to 这是固定的,我们都考过这个,记住,只要是think back to 开头就要用thinking back to 绝对不会错,相信我