80 percent of the population in our country ________ peasants.

1. A.
   is
2. B.
   are
3. C.
   was
4. D.
   have

 (    )80. Could you _______ me your bike? Mine is broken. --Sure. It's there.

           A. borrow        B. lend          C. giving        D. return

 (    )80. -- What are you going to do next Sunday?    --_____________

   A. I' m sorry   B. Here you are   C. I' ve no idea   D. That' s all right

      80 tons，the B一19 was clearly the largest and most advanced warplane in the world．

    A．Weighed        B．Being weighed     C．To weigh         D．Weighing

____80 tons, the B-19 was clearly the largest and most advanced warplane in the

world.

   A. Weighed           B. Being weighed      C. To weigh     D. Weighing