see sb do 和see sb doing有什么区别，下一题该用哪一个
Often__these young Pioneers__good deeds
A)have I seen,doing B)have I seen,to do
C)have seen I,do D)have I seen ,do
參考答案:D
see sb do经常看见的意思
see sb doing看见时正在做的意思
see sb do 和see sb doing有什么区别，下一题该用哪一个
Often__these young Pioneers__good deeds
A)have I seen,doing B)have I seen,to do
C)have seen I,do D)have I seen ,do
參考答案:D
see sb do经常看见的意思
see sb doing看见时正在做的意思