Đáp án đúng là: I didn't know who it was with a mask on she was completely unrecognizable.
Giải thích: Sau tobe cần 1 TT phù hợp ngữ cảnh
Dịch: Tôi không biết đó là ai với chiếc mặt nạ trên người cô ấy hoàn toàn không thể nhận ra.
Though he is young, there are some ministers even younger than him. (MEANS)
My brother often forgets to lock the front door before he goes out. (HABIT)
=> My brother _________________________ the front door unlocked before he goes out.
Yesterday Alice bought a magazine whose title is Sun Flowers. (OF)
He said he had no intention of hurting me. but I’m sure he hit me (PURPOSE)
PART B. GRAMMAR AND VOCABULARY
I. Circle the letter A, B. C, or D to indicate the correct answer to each of the following sentences.
21. She cried a lot when she knew she was _____ out by her classmates.
It's unusual for her to get angry with her students. (HARDLY)
=> She _______________________________ temper with her students.
The victims of the mistaken bombing are just the latest ____ of an increasingly bloody war. (CASUAL)
We'd concentrate and be self-disciplined to have _____ skill. (COGNITION)