How can you if you are not ? A. hear; listening B. listen; hearing C. be listeni
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20.Howcan you ________ if you are not ________ ?
| A. hear; listening | B. listen; hearing |
| C. be listening; heard | D. be hearing; listened to |
试题答案
答案：A
提示：题目考察动词现在分词用以描述正在发生的动作。注意句中hear为谓语动词。注意动词hear(听见)与动词listen(听)的意义不同
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