he_____(work)on the maths problems since seven o’clock.He _____(work)on it for two hours.i'm surehe_____(work)on the maths problems since seven o’clock。He _____(work)on it for two hours.i'm sure he_____(work)it out in one hour.麻烦认真回
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 05:06:23
![he_____(work)on the maths problems since seven o’clock.He _____(work)on it for two hours.i'm surehe_____(work)on the maths problems since seven o’clock。He _____(work)on it for two hours.i'm sure he_____(work)it out in one hour.麻烦认真回](/uploads/image/z/9255310-70-0.jpg?t=he_____%28work%29on+the+maths+problems+since+seven+o%E2%80%99clock.He+_____%28work%29on+it+for+two+hours.i%27m+surehe_____%28work%29on+the+maths+problems+since+seven+o%E2%80%99clock%E3%80%82He+_____%28work%29on+it+for+two+hours.i%27m+sure+he_____%28work%29it+out+in+one+hour.%E9%BA%BB%E7%83%A6%E8%AE%A4%E7%9C%9F%E5%9B%9E)
he_____(work)on the maths problems since seven o’clock.He _____(work)on it for two hours.i'm surehe_____(work)on the maths problems since seven o’clock。He _____(work)on it for two hours.i'm sure he_____(work)it out in one hour.麻烦认真回
he_____(work)on the maths problems since seven o’clock.He _____(work)on it for two hours.i'm sure
he_____(work)on the maths problems since seven o’clock。He _____(work)on it for two hours.i'm sure he_____(work)it out in one hour.麻烦认真回答下
he_____(work)on the maths problems since seven o’clock.He _____(work)on it for two hours.i'm surehe_____(work)on the maths problems since seven o’clock。He _____(work)on it for two hours.i'm sure he_____(work)it out in one hour.麻烦认真回
has worked;他从晚上7点,就开始做数学题.
has worked他做数学题做了2小时了
will
我肯定他会在1小时之内完成这道题.
祝好!
has been working.
has worked
will work
he___has been working__(work)on the maths problems since seven o’clock。
He __has worked___(work)on it for two hours.i'm sure he_will work____(work)it out in one hour
第一个是现在完成进行时,说明他还在继续做未停止,第...
全部展开
he___has been working__(work)on the maths problems since seven o’clock。
He __has worked___(work)on it for two hours.i'm sure he_will work____(work)it out in one hour
第一个是现在完成进行时,说明他还在继续做未停止,第二个是对目前的影响,用完成时,第三个是将来时,有时间状语
收起