Нужно употребить во в косвенной речи
He doesn't know (Who was the nineteenth president of the United States?). He isn't sure (When did the Civil War end?), He doesn't remember (When did California become a state?), He has forgotten (Where was George Washington born?). He can't remember (How many people signed the Declaration of independence?). He doesn't know (Where was Abraham Lincoln assassinated?). He has forgotten (Why was Washington chosen as the capital?). And he has no idea (What did Alexander Graham Bell invent?).

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tsagol10

Английский язык

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3. найдите и выпишите предложения в present perfect. “we’ ve definitely made mistakes, but it’s probably the first time in our lives that we’re not getting a grade and we don’t have anyone telling us what to do.” lehigh first tried what it calls its mountaintop program on a smaller scale last summer, combining elements that scholars of education have advocated for years — research, work experience and independent, long-form projects. some colleges have expanded those practices, but the going has been slow. the annual national survey of student engagement shows that by the time they graduate, fewer than half of college students have done i nternships or some other kind of field experience, fewer than half have done a senior thesis and just 23 percent have done research with a faculty member outside of what is required for their courses. 4. найдите и выпишите предложения в present continuous. most of the students here are pursuing their own projects — about 30 in all — and finding their own way, with little faculty input and with nothing more at stake than testing their own ambition, skills and curiosity. “we got a group together and said what we wanted to do, and the administration just said, ‘o.k., ask for any equipment or advice you need,’ ” said colleen perry, who is studying bioengineering. “we’ve definitely made mistakes, but it’s probably the first time in our lives that we ’re not getting a grade and we don’t have anyone telling us what to do.” so what lehigh is trying, she said, “is pretty interesting.” 5. найдите и выпишите предложения в present perfect continuous. “we know that these are high-impact practices that we’ve been expanding, but we need to think about new models of how to promote them, because a faculty member can only take on so many students to mentor directly,” said lynnette overby, director of undergraduate research and experiential learning at the university of delaware.