I took the exam 4 years ago and I don't feel like there's a
point in estimating the scores for A1 and A2. Because afterall,
there's the listening comprehension, oral exam and the writing
tests (paper 1) which are huge components altogether but you will
never know how much you even roughly scored for them.
The bell curve is not bad, it's not difficult to get an A or B3
for MT as I also find that the command of the language among the
average people is not strong at all. Thankfully the HMT people are
not taking the exam in June. I would say those who can speak
Mandarin fluently are the ones who got very high chances of getting
A2 at least.
At this point, I find that it would be useless to practise or go
through paper 2. I would just read more model essays for the
exposition/argumentatives to get more comfortable with the serious
tone and chinese-ness. Don't be afraid to re-read the good ones
many times. It is supposed to help raise the standard and
consistency similar to them as well.
Take down some memorable cheem
phrases that can be applied easily to many essays. Remember a few
"Su Yu" to end off ur some of your points or your essays decently,
and it also helps with the essay length. And of course, don't
forget your letter-writing formats.