— Why are you always standing in class, Kitty?—I can’t see the blackboard clearly because the two tall boys are sitting       me.

He         up very late in the morning ,but now he         up very early.

I bought a robot _______ have more free time.

I have been working so hard these days for the big exam. I feel_____. I’m afraid I can’t pass it.

 —______ there is no water left on the earth? —I really don’t know.