差到唔係幾睇得明本書講咩...
仲有 我唔係好明點解啲verb一時要加ed 一時又唔洗
eg. each side of these phospholipids was a layer of protein molecules.
點解個verb要轉past tense???
eg. some proteins occur on the surface of the phospholipid layer, while others extend
into it, some even extend completely across.
點解哩句既verb又唔洗轉past tense 而係present tense???
我讀得好辛苦 好驚中四跟唔上個進度...:(
有無啲prefix suffix係讀bio必學?
希望有人可以答下我!!!
更新1:
多謝兩位既回答先 你地可唔可以順便答埋我tense既問題:(