We spent two hours finishing our homework last night.（改为同义句）

We spent two hours finishing our homework last night.（改为同义句） I spent two hours doing my homework last night的同义句 We did our homework last night.改为同义句 I spent two hours on my homework.(改为同义句) they spent two hours finishing all the work.(改为同义句) I spent two hours doing my homework yesterday.(改为同义句） Alan spent two hours ( )(do one's homework)last night. I spent two hours doing my homework last night He spent two hours doing his homework last night We did our homework last night改为否定句 I spent（ ）（for;about）two hours on my homework last night 改为同义句1,He spent three hours finishing the task.（ ）（ ）him thr