— Is it OK if I take this seat?—Sorry,___________.
—Are you going to the football game? —No, the tickets are ____expensive for me.
The US is about the same size as China, but its population is five times_ ___.
I’m glad to say that he’s already finished _____50% of the book in these three days.
_ ____, the boys were shouting and singing.
Exercise is _____as any other to lose unwanted weight.