She got a terrible mark in the exam so she …….. very hard at all.
A. mustn’t have worked
B. can’t have worked
C. didn’t work
Câu trả lời là: B là đáp án đúng
Bảng Công Thức Nguyên Hàm
She got a terrible mark in the exam so she …….. very hard at all.
A. mustn’t have worked
B. can’t have worked
C. didn’t work
Câu trả lời là: B là đáp án đúng