We have worked for three hours. Now let's stop _________ a rest.
It’s very kind _________ you to help me carry the boxes since it is difficult _________ a person like you to carry so heavy things.
____ of the students has finished the exam, so ___ has come out of the classroom.
We think white looks good ________ you, but people with black skins don’t lookgood ________ white.
—You can stay at home alone or go shopping with me, Jim. What do you prefer?—Well, I prefer ___________ at home to _____________ shopping, Mum.
— Chinese clay art, you should choose a very special kind of clay first.— Yes. This kind of clay is easy to shape.