I spent half an hour in doing my homework
I spent half an hour ______ my homework
( ) 15.I spent half an hour ___________ my homework .finish
I spent half an hour ___(finish) my homework.
I spent an hour ___________ my homework
I spent half an hour on my homework yesterday.(保持原意
I spent half an hour on my homework yesterday.(保持原意)
I spent half an hour___my homework.Afinish doing Bto finish
I spend half an hour finishing doing homework
I spend an hour in doing my homework.同义句(____ ____ me an hou
it takes me half an hour to do my homework.i------ half an h
l spent an hour doing my homework yesterday evenig(保持原句意思) 根
I spent two hours in doing my homework yesterday