Đề bài
Choose the best answer
Everybody was exhausted. It looked as if they (work) ____________ hard.
-
A.
worked
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B.
had worked
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C.
work
-
D.
works
Lời giải của GV Loigiaihay.com
Dấu hiệu: Everybody was exhausted => sử dụng câu giả định với As if ở quá khứ
Cấu trúc: It looked as if + S + had + Vp2
=> Everybody was exhausted. It looked as if they had worked hard.
Tạm dịch: Mọi người đều kiệt sức. Có vẻ như họ đã làm việc chăm chỉ.
Đáp án : B
