giải:
1. do/ Maths /have /often/ you/ how
=> how often do you have Maths ?
2 tom /how/ have/ does/ PE/ often/
=> How often does Tom have PE ?
3 has /three/ he /times a week/ English
=> he has English three times a week
4 IT /how/ Hoa/ have/ do/often/ Linda/ and
=> how often do Hoa and Linda have IT?
5 my/ are/ favorite/ subjects /English and science/
=> my favorite subjects are English and science
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