—Why did you leave without a word of warning to John?—But what _____ otherwise? He never listens to me.

The room is in a terrible mess; it ________have been cleaned.

She was greatly shocked at the scene before her eyes. Never did she expect that the local conditions ______ be so awful.

–What do you think we can do for our parents? --You ____ do anything except to show your love -- a kind word, a warm smile and a helping hand.

You ___________ follow the traffic rules. Otherwise, it is dangerous for you.