In the way the test is currently designed, if you can't write any Chinese characters at all, by doing well on the first two sections and guessing a few right answers on the reading section, you can still get a good grade.
若真是這樣，不會寫一個中文字也可考前兩大題，閱讀測驗再猜對幾題，也可能會有不錯的成績。