HER ACADEMIC PERFORMANCE HAS GREATLY IMPROVED SINCE SHE ………
Câu 22 (TH):
Her academic performance has greatly improved since she ………. her
study methods.
A.
changed
B.
will change
C.
would change
D.
was changing
Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is
CLOSEST in meaning to the underlined part in each of the followings.