（ ）1.Look, Mary _______ a newspaper in the classroom.
A . is reading B . reads C. read D. has read
（ ）2.Lin Tao goes to the doctor's Sunday afternoon.
A. on B . in C. at D. of
（ ）3.They a picnic if it is fine tomorrow.
A. have B .will have C.had D .are having
（ ）4.There is some tea in the cup, isn't ?
A. it B . that C. this D . there
