She caught me by the arm

She caught me by the arm She caught me by the arm这句话能写成She caught my arms吗/不能的话有劳说下原因 Translation:she caught me by the hand a young man caught me by the arm when i ____(get) off the tr The policeman caught the thief by ___ arm. 1.the policeman caught the thief by ______ arm The policeman caught the thief by ___.A.his arm B.arm C.the I caught the thief by the arm.这一句中的by是什么意思?为什么用by呢? He took me by the arm the policeman caught the man ___ the arm A：by B: with C:on D 请教一个单句改错：The policeman caught the thief by his arm. She took me __ my arm.如何填中间的介词,by还是on