AT THE MOMENT, ANNE ... A LETTER TO HER FRIEND.A. HAS BEEN WRITING...

30. - 3500 CAU TRAC NGHIEM ON TAP AV THCS
3500 CAU TRAC NGHIEM ON TAP AV THCS

30. At the moment, Anne ... a letter to her friend.

a. has been writing

b. was writing

c. writes

d. is writing

 d