De thi Tieng Anh Olympic Tieng Anh - IOE - Lop 4 vong 22- This is the test for teacher who is teaching English in Primary School. It is also an useful material for teacher to help your children practicing 4 English drills. There are four sections in this test . IOE - English competition for Primary Schools - This English contest can be written by any student in grade 4 or below. Students have 60 minutes to answer 40 multiple choice questions ( 4 rounds)