用戶【Annie Chou】點評問題和點評內容

【評論主題】14. 0 × (−999) − 1 × 999=?(A)-999000 (B)-999 (C) 999 (D) -997002

【評論內容】0乘以任何數答案皆為01x999=99........

【評論主題】5.Mandy ______ her room before she watched TV.(A) cleans (B) cleaned (C) clean (D) is cleaning

【評論內容】同一個句子要使用相同時態。watched★........