問題應該是 Did he meet Macy and Polly?
定係 Did he meet Macy or Polly? 為什麼?
又, Today my baby brother _________(not have) a fever any more.
為什麼答案係 doesn't have 而唔係 hasn"t ?
更新1:
To secret_idcard , hasn’t = has+not 是present tense的 我想問是:為什麼不能用hasn’t ? 不是 :為什麼不能用hasn’t had ?