关于不定式的选择题,---- I usually go there by train.---- Why not ___

关于不定式的选择题,---- I usually go there by train.---- Why not ___ 5.---- I usually go there by train.---- Why not ___ by boat 5. ---- I usually go there by train. A ---- Why not ___ by b ---I usually go there by train.---Why not _____ -I usually go there by train -Why not try going bu boat for i usually go there by train,why not __by boat for a change? ——I usually go there by train.——Why not try____（go）by boat f 七、单项填空.（ ）1.—I usually go there by train .—Why not by boat f --I usually go there by bus.---Why not _______ 英语单选1. --- I usually go there by train . ----Why not___by bo ---Why not go there by air instead of by train? A:i usually travel by train B:why not ___by plane for a chan