2、r与to do不定式连用只能用whether作主语只能用whether①I don’t know _____he will come or not.②I don’t care of ______ he is handsome.③He wondered ______ to stay here the next week.④____ he will comes not decided.引导词练习:1.Doyouknow_____theylistenedtoyesterdayevening?A.whatBwhenCwhyDhow2.Couldyoutellme______