The teacher commanded that the exercises _______ in an hour. A. was finished B . were finished C should finish D. be finished
–My uncle suggests I _______ abroad. --I would rather you ________ at home.
He sets us so difficult a problem_________ I couldn’t work out.
We think that it’s love, generosity and perseverance _______make the world ________ it is today.
It seems that living green is _______ easy and affordable. A small step makes a big difference.
Don’t wake Doctor Thompson up unless it is a real_________; he is too tired and needs a good rest.