I'm a little confused, but what does this sentence exactly mean? What does this sentence exactly mean?"Every girl should know that she doesn't need a man who don't need her the first place"

Which one is correct, take turns to do or take turns doing ? Is there any difference? Thank you.

undetermined This term is coming to an end soon and the summer vacation is drawing nearer. I’m so happy that I’ll be free in about two weeks. Meanwhile, I’m a little worried about my class, fearing that they might not do well in the final examination. They are smart students but lazy, especially boys. Some of the boys don’t try to remember words, or they may try but forget them altogether soon. They got poor marks in vocabulary. To urge them to learn, I’m giving them dictations these days. But I’m always sorry to see they lost marks simply because they didn’t change the forms of nouns or paid no attention to tenses. Many (or most) of them don’t remember words from context but by the Chinese translation (mechanical memorization), thus frequently made silly mistakes. It is really hard to get them “think” in the English way. But is it their fault? I think it’s all about the language environment. How can we expect a student to learn a language well in the absence of a language environment? Anyway, not everybody has such a gift for learning language, me included. Bearing this in mind, I may be more tolerant and patient with them.

Is this sentence ambiguous? Compared with other European countries, Switzerland has more convenient public transport. Is this sentence ambiguous? "more convenient public transport" = more public transport OR the public transport is more convenient in Switzerland? Thank you!

Are there any differences between but and yet as conjuction? Are there any differences between the two words as conjunction? Beijing is an ancient yet modern city. Can we use but here? Beijing is an ancient but modern city.

are exposed to or are being exposed to? Plants and animals that live near nuclear plants are ______________ radiation we don't know about. What's the correct answer here? are exposed to or are being exposed to?