i don know why. why teachers give hmwk, give hmwk as in e whole exercise and doesnt matter how many bloody lots of qns are in it, u still must finish them off. but then, they only PICK some to mark. if its like tt, those we do wrongly and they don mark it, how am i gonna expect which one i do is correct or wrong? i wont b able to learn frm my mistakes. make us do whole exercise and u, teachers pick some to mark. like, where's e fairness? we do wad u tell us. but u wont complete ur task by marking all. its so damn useless when we wont know which one we do is wrong.