—This pair of shoes ____ belong to Jack. He likes this kind very much.—It ____ be his. It’s too large for him.

— If you listen to me, you ______ take a good rest at once.— OK, I ______ do so.

–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.

----Dad, the bread is not enough. I am still hungry.    I have something more? ----But there’s nothing in the fridge now.

—Must I finish the exercise this afternoon?—Yes, you ______, but you ______ finish it now.