PRACTICE TEST 10- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân

_______ had they finished their project than they prepared for another one. A. No until B. As long as C. As soon as D. No sooner

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_______ had they finished their project than they prepared for another one.

No until

As long as

As soon as

No sooner

Giải thích

Chọn đáp án D