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| The teacher, together with 20 students of her class, ______ visiting a museum when the earthquake struck. A. was B. were C. had been D. would be |
| Ａ |
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| The teacher, together with 20 students of her class, ______ visiting a museum when the earthquake struck. A. was B. were C. had been D. would be |
| Ａ |
阅读快车系列答案