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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 didn't know exactly how old he was, but he ______ about 30 the first time we met.
A. should be
B. should have been
C. must
D. must have been
I didn't know exactly how old he was, but he ______ about 30 the first time we met.
A. should be
B. should have been
C. must
D. must have been
Kỹ năng: Dịch
Giải thích:
must have been (suy đoán điều chắc chắn đã xảy ra trong quá khứ)
Giải thích:
must have been (suy đoán điều chắc chắn đã xảy ra trong quá khứ)
Đáp án D.