Câu hỏi: Mark the letter A, B, C or D on your answer to indicate the correct answer to each of the following questions.
______ that there were ants in the grass, I didn't sit down.
A. Have known
B. Having known
C. Having been known
D. Having been knowing
______ that there were ants in the grass, I didn't sit down.
A. Have known
B. Having known
C. Having been known
D. Having been knowing
Giải thích:
Cấu trúc rút gọn mệnh đề:
Rút gọn mệnh đề trạng ngữ ở dạng chủ động → having + V-ed/V3
Câu gốc: After I had known that there were ants in the grass, I didn't sit down.
Tạm dịch: Biết rằng có kiến trong cỏ, tôi đã không ngồi xuống.
Cấu trúc rút gọn mệnh đề:
Rút gọn mệnh đề trạng ngữ ở dạng chủ động → having + V-ed/V3
Câu gốc: After I had known that there were ants in the grass, I didn't sit down.
Tạm dịch: Biết rằng có kiến trong cỏ, tôi đã không ngồi xuống.
Đáp án B.