Last night Mr. Crook didn’t come back at the usual timE. ______, he met some friends and atayed out ...

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don’t have to needn’t have didn’t need to should have

don’t have to didn’t need to needn’t have should have

whole night was wasteD. A. couldn’t have waited didn’t need to wait shouldn’t have waited needn’t have waited

mustn’t he 　 hasn’t he didn’t he 　 needn’t he

needn’t have should have didn’t need to don’t have to

couldn't have needn't have didn't need to should wait have

couldn’t have needn’t have didn’t need to should wait have

don’t have to needn’t have didn’t need to should have

Meanwhile However Instead Yet

don't have to needn't have didn't need to should have

don’t have to needn’t have　　 didn’t need to should have

didn’t he mustn’t he didn’t John hasn’t he

does; until don’t; until didn’t; until isn’t; until

don’t have to needn’t have didn’t need to should have

couldn’t have needn’t have didn’t need to should wait have

Meanwhile However Instead Yet

don’t have to needn’t have didn’t need to should have

However Yet Instead Meanwhile

whole night was wasteD.　 A. had waited　　　　　　　 have been waiting　　 were waiting　　　　　 had been waiting