II ARRIVE/ LECTURE/ ALREADY START/ PROFESSOR/ WRITE/ OVERHEAD PROJECTOR//A

50. - E 11 3 TONG BT TRAC NGHIEM HK1 50. - E 11 3 TONG BT TRAC NGHIEM HK1
E 11 3 TONG BT TRAC NGHIEM HK1
50. When! II arrive/ lecture/ already start/ professor/ write/ overhead projector//a. When I arrived the lecture already started and the professor wrote the