Câu hỏi:
17/06/2026 187He acts as if he ________ English perfectly.
A. know
B. knew
C. have known
D. had known
Trả lời:
Giải bởi Vietjack
Đáp án B
Khi dùng "as if" để diễn tả tình huống giả định ở hiện tại, động từ phải được chia ở quá khứ đơn để thể hiện sự không có thật.
Mệnh đề sau "as if" phải chia quá khứ đơn (để thể hiện giả định).
=> Động từ "know" ở quá khứ đơn là "knew".
Dịch nghĩa: “Nhưng thực tế có thể anh ấy không biết giỏi như vậy.”
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