小题1:Why not / Why don’t you book tickets online / reserve the ticket(s) on the Internet?
小题2:I often mistake Wang Hai for his twin brother because they look so similar / very much alike.
小题3:As for parents, nothing can be compared with their children’s physical and mental health.
小题4:No longer has she kept in touch with us since she went abroad for further study / education.
小题5:If you can find whatever learning method (that) suits you , your study / learning efficiency is likely to improve remarkably.
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