Ask to write a number two pencil. According to our usual marking method, the No.2 pencil is a B pencil, and a 2B pencil is also acceptable. I sent an email to HKCAA to inquire, and the reply I got was HB, but in fact both HB and 2B can be used. Because I have used them, I will draw cards quickly, and it is not troublesome to lightly paint 2B.
SAT exams are written in pencil. The requirements are 2B from abroad, but HB from China. During the examination in Hong Kong, the teacher of Ito International Education in Guangzhou told you to write in HB, and it was best to buy two kinds, but only pencils and erasers were allowed in the whole examination.
According to the experience, 2B is recommended in the math section. Do the simulation questions at least once before the exam to see if the paper is scraped smoothly. Prepare about 5 pencils to avoid wasting time sharpening pencils. Another suggestion: prepare two sharp pens to write a composition and two protruding cards.