Professor White has written some short stories, but he is _____ known for his plays.
---- Why is the cake so expensive?---- Maybe you don’t know a cake made of wheat costs less than _____ made of rice.
---- Do you think it's a good idea to make friends with your students? ---- _____ , I do.I think it's a great idea.
---- I wonder how much you charge for your services. ---- The first two are free ____ the third costs $30.
–What did you say? --So you _____________ to me.
My laptop computer, which no one can ____________, has been out of order for a week.