—Why did you leave without a word of warning to John?—But what _____ otherwise? He never listens to me.
Time and tide__________for no man.
Climbing hills__________of great help to health.
Her family__________much larger than mine four years ago.Her family__________dancing and singing when I came in last night.
A knife and a fork __________on the table.A knife and fork __________on the table.
Many a professor__________looking forward to visiting Germany now.Many scientists__________studied animals and plants in the last two years.