I.       单项选择 (每小题1分,共15分)
(   )1. There is        apple on the table.         apple is sweet. 
A. a; The     B. an; The        C. the; A        D. an; A
(   )2.--What color are these shirts?
--           blue.
   A. These are B. they are      C. It is        D. They are
(   )3.--What         are you in?
--I’m in         3.
   A. Class,class B. class,class C. class,Class D. Class,Class
(   )4.--How many            are there?
       --Twenty.
       A. sheep        B. apple        C. desk         D. water