Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
I couldn't take the history class I wanted last semester."
Why didn't you talk to your advisor? She _________able to help you get in."
A. might have been
B. wasn't
C. couldn't have been
D. might be
I couldn't take the history class I wanted last semester."
Why didn't you talk to your advisor? She _________able to help you get in."
A. might have been
B. wasn't
C. couldn't have been
D. might be
- might have + Vpp: Biểu thị một khả năng, một điều có thể đã xảy ra trong quá khứE.g: It might have rained last night. I'm not sure. (Trời có thể đã mưa vào tối qua. Tôi khôngchắc chắn lắm.)- couldn't have + Vpp: suy luận phủ định trong quá khứE.g: A man answered the phone. I suppose it was her husband. - It couldn't have been herhusband. He's been dead for ages.(Một người đàn ông đã trả lời điện thoại. Tôi nghĩa đó là chồng cô ấy. - Người đó không thểlà chồng cô ấy được. Ông ta đã chết lâu rồi mà.)- might: nói về khả năng
E.g: It might rain this afternoon.
E.g: It might rain this afternoon.
Đáp án A.