肯定句：I have to do my homework
否定句：I didn't do my homework
疑问句：can you help me to do my homework?
He always does his homework at 6 o'clock in the afternoon.
He does not do his homework at 6 o'clock in the afternoon.
Does he do his homework at 6 o'clock in the afternoon?
He is doing his homework. Do you do your homework after supper？ She doesn't do her homework.
1#I will do my homework3#Did yiu do your homework？2#He does not do hishimework
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