1. B—Look! It looks as if it _______ going to rain. We must hurry.

   —OK.

     A. was                B. is                      C. were                   D. will be

2. A—________ my dictionary?

  —Yes. I put it in your desk just now.

     A. Do you see        B. Have you seen    C. Did you see              D. Had you seen

3. A—When did he go to America?

  —Oh, he ________ there since half a year ago.

     A. went               B. has been                   C. has gone            D. was