16: Perhaps what you’re reading or hearing is boring, which makes it hard to ......on the book or the conversation. A. concentrate B. rely C. depend D. notice 17. Physical changes are different for everyone, so you don’t need to feel embarrased or______ A. excited    B. tense    C. confident    D. delighted 18. My mother is a strong person. She stays calm even _____ the worst situations A. in B. at    C. on   D. to 19. As children move toward _________, they are less likely to ask for advice. A. dependent B. dependence C. independent D. independence 20. I don’t want to share my room with my cousin because we don’t _____on well. A. take B. like C. make D. get 21. “They want her to go to a top college and study medicine.” “ ” A. I don’t believe. B. Yes, I’d love to. C. Really? D. No, thanks.

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