Find mistake Doctors have used penicillin around the word since Alexander Fleming has discovered it A. Have used B. Has dico

2 bình luận về “Find mistake Doctors have used penicillin around the word since Alexander Fleming has discovered it A. Have used B. Has dico”

1. Giải đáp: B -> discovered

   -> thì HTHT kết hợp với thì QKĐ bằng từ since:

   \text{S + have/has + P2 + since + S + Ved/V2}

   $chucbanhoctot$
   $\boxed{\color{purple}{\text{#KaitoKid!}}}$

   Trả lời
2. Find mistake Doctors have used penicillin around the word since Alexander Fleming has discovered it

   A. Have used

   B. Has dicovered

   Trả lời