—What’s in the pencil-box?  —________ a pen in it.

---What’s in the pencil-box? 

---________ a pen in it.

1. A.
   That’s
2. B.
   There’s
3. C.
   This’s
4. D.
   It’s

—What’s in the pencil-box?  —________ a pen in it.

---What can you see in the picture?-There ________ a pencil-box.

---What's in it?-There ________ many things.

---There ________ a pen, a pencil, a ruler, a rubber and a marker(标记笔) in it.

1. A.
   is; are; is
2. B.
   are; is; is
3. C.
   is; is; are
4. D.
   are; is; are