(   ) 1. Maria sees a pen on the floor. She stops       .

              A. to pick it up       B. to pick up it        C. picking it up        D. picking up it

(   ) 2. — What’s your friend’s home like?

              —       

              A. It’s an apartment building.                B. He works in a factory.

              C. She is very tall with long black hair.   D. He isn’t well today.

(   ) 3. You can get someone in the shop        you buy something.

              A. help                  B. helps                  C. to help                D. helping

(   ) 4. There is a hospital        the corner of the street.

              A. in                     B. of                       C. with                    D. on