是现在完成时：have+过去分词 We have learned 2000 English words so far. 目前为止我们已经学了2000个单词. 再问： He prefers( )(give)to receiving. My friend Carmen pretended( )(like)the gift. Miss Wei often helps us(learn our English)提问为（ )( )Miss Wei often( )you( )? 再答： giving to like What does help do
