Sorry that I'd like to use English as I can type faster. My girl had the same experience in P1, I now regret to give her much pressure during those time, it was just not appropiate to make a primary one girl to be so stressful! Some kids are just need a longer time to be mature enough to handle the study. And the school is actually not that demanding in academic performance esp. for junior classes. Relax yourself first, she can feel your feelings. Don't focus on doing exercises only, it's ok right before the tests and exams. But my two cents opinion is to start from the very basic, let her do more reading (find interesting story books) and read with her. Language capability is developed over a period of time and you just can't have miracle within a short period of time. Accompany her to read more interest story books sure can help. Good Luck.
Last yr Sister mentioned if the average mark of 3 each main subject not less than 55 may have chance to promote. The tests and exams really not easy, in fact difficult for their level. Usually exams even more difficult...Usually can get marks 70+-80+ only , v difficult to get high marks.... So in my opinion may need to attend tutorial center or do many exercise books... Just study on the school stuffs not enough for the tests and exams.