—________ fine weather it is today!—Let's go for a picnic.     

Please       forget your homework. You are supposed to hand it in tomorrow moming.

I know one of the things I was unsure about was _____ hard it would be to climb this mountain.

________ the prices and functions of different types of computers before you make up your mind which to buy. 

--- _______ late for school again, Tim!    --- Sorry, I promise that I _______.