题目内容
----How long do you watch TV?
----I watch TV_______ every day.
| A．four an hour | B．an hour |
| C．for a hour | D．for an hour |
D
解析试题分析：句意：——你看多长时间电视？——我每天看电视长达一小时。根据how long可知此处对时间段提问，hour是元音音素开头的，故用不定冠词an来修饰。故为for an hour, 故选D。
考点：考查介词短语的用法。
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