Mark the letter A B, C, or D to indicate the sentence that is closest in meaning to each of the following questions.
1 thought she was ill because she was absent from class yesterday.
A. She might have been ill because she didn't go to school yesterday.
B. She should have been ill because she didn't go to school yesterday.
C. She must have been ill because she didn't go to school yesterday.
D. She could have been ill because she didn't go to school yesterday,
Đáp án C
Kiến thức về động từ khiếm khuyết
Đề bài: Tôi nghĩ cô ấy đã bị bệnh bởi vì cô ấy đã vắng học ngày hôm qua.
= C. Cô ấy chắc hẳn đã bị bệnh bởi vì cô ấy đã không đến trường ngày hôm qua.