腕带
幼苗
共回答了15个问题采纳率:86.7% 举报
以我在帮你回答问题为例:
一般现在时、I help you answer the question.
现在进行时、I am helping you answer the question now.
一般将来时、I will help you answer the question tomorrow.
现在完成时、I have helped you answer the question.
一般过去时、I helped you answer the question.
过去进行时、I was helping you answer the questionat that time.
过去将来时、I was about to help you answer the question.
过去完成时(又名过去过去时)、I had helped you answer the question.
1年前
10