--- Who’s singing in the bathroom?--- It ________ be Mr. Brown. Nobody sings like that except him.
I will do some cleaning as soon as I________my homework.
I wanted to help my mother do the housework.She asked me to________the rubbish.
—Could you please help me sweep the floor? —________.
—Could I use the phone,Miss Li? —________.
Here are some books.Could you please________?