I'd rather you _______ at home all day today.
A. stay
B. stayed
C. should stay
D. had stayed
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Robin ______ the game, with a little more training and a better trainer.
A. would win
B. had won
C. could have won
D. won
I wish I ______what was going to happen.
A. knew
B. know
C. have known
D. will know
Without electricity, human life ______quite difficult today.
A. would be
B. be
C. would have been
D. will be
It is obligatory that every child ______ their parents.
A. looks after
B. looked after
C. must look after
D. should look after
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