at school yesterday when we were informed that there was no class due to a sudden power cut.

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Circle one letter to indicate the sentence that best combines each pair of sentences in the following questions.

_________at school yesterday when we were informed that there was no class due to a sudden power cut.

We had arrived hardly

We have hardly arrived

Hardly we had arrived

Hardly had we arrived

Giải thích

Ta thấy mệnh đề thứ hai của câu bắt đầu bằng từ when, 4 phương án đã cho đều chứa từ hardly nên ta có một cấu trúc câu đảo ngữ phù hợp:

Hardly + had + P₂ when S V (ngay khi vừa... thì)

→ Phương án D đúng với cấu trúc ngữ pháp trên.

Chọn D.