It is difficult for any of us to eat better, exercise more and sleep enough ____
题型：不详难度：来源：
It is difficult for any of us to eat better, exercise more and sleep enough _________ we know we should.| A．despite | B．even though | C．as if | D．unless |
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答案
| B |
解析
| 考查词性词义：A. despite介词，虽然，B. even though连词，既然，C. as if 连词，好像，D. unless连词；除非，句意是：我们每个人想吃得好，多锻炼，睡眠足够都很难，即使我们知道应该这么做。选B。A的词性不对。 |
举一反三
______ you understand it, it’s easy for you to obey it.| A．As soon as | B．Once | C．Unless | D．The moment |
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---You won’t go to Mary’s wedding party, will you?
---Yes, ______ invited to.| A．even if | B．if | C．unless | D．though |
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Help others whenever you can _______ you will earn respect from others without difficulty. |
—— Where did Mary’s parents buy the beautiful vase?
—— It was in the same village _______ they spent their holidays last year. |
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