(   ) 1.— Would you please not speak so loudly in            public?

       — Sorry. I will remember to speak in             lower voice.

       A. the; a                B. /; a                    C. the; the                D. /; /

(   ) 2. — Excuse me, sir. But you’re _____________ my way.

       — Sorry. I didn’t know you were passing by.

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

(   ) 3. The _________of new inventions should be to make life easier, not to make it harder.

       A. rules                      B. subjects           C. secrets                     D. purposes