psv ps3:帮我看看这个句子错在哪~~?How many exercises have you been doing?
来源:百度文库 编辑:高考问答 时间:2024/05/09 19:52:40
How many exercises have you been doing?错在哪~~?
应该是时态错误,不应用现在完成进行时,应该换成现在完成时,而且exercise是不可数名词,正确的应为:
How much exercise have you done?