用现在完成时或现在完成进行时填空.The boys_____(play) football for at least an hour.
问题描述：
用现在完成时或现在完成进行时填空.
The boys_____(play) football for at least an hour.
答
has been playing
答
have played现在完成时
答
你好，使用现在完成进行时。
填写：has been playing
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答
have been playing 刚才看错了。。。
答
这种情况实际上现在完成时和完成进行时都可以的,最好是have been playing.不知道楼上两位为什么都写的has,明明主语是复数!
答
have played
答
have been playing