Life is like riding a bicycle. ________ your balance, you must keep moving.A．Kee
题型：不详难度：来源：
Life is like riding a bicycle. ________ your balance, you must keep moving.| A．Keeping | B．To keep | | C．Keep | D．Having kept |
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答案
| B |
解析
| B 考察非谓语动词。句义：生活就像骑自行车，为了保持平衡，你必须不断前进。根据句义可知此处应该使用不定式表示目的。故B正确。 |
举一反三
________ by reporters about the case, Mr. Sun said Chongqing takes a clearcut attitude and is taking resolute measures.| A．Having asked | B．To be asked | | C．Asking | D．Asked |
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