“The door was open.” - “It _____________ been open...
Câu hỏi: “The door was open.” - “It _____________ been open. I had locked it myself and the key was in my pocket.”
A mustn’t have
B must have
C can’t have
D shouldn’t have
Câu hỏi trên thuộc đề trắc nghiệm
- Động từ khuyết thiếu - Có lời giải chi tiết