We really don’t know _________ with our problems in learning English.

_______ are you waiting?—We are waiting for two days.[ ]

Could you please take out the trash? —OK. I’ll do it _______. [ ]

You are leaving your school. How do you like it?——Very much, of course, I ______ this school since I moved here.

It was the training that he had as a child________made him such a good pianist, received by teenagers as well as adults．