Tom is now in our class, but he once ___
题型:选择题
问题:
Tom is now in our class, but he once _____ in Westbrook High School for a term. [ ]
A. has studied
B. studied
C. had studied
D. studies
Tom is now in our class, but he once _____ in Westbrook High School for a term. [ ]
A. has studied
B. studied
C. had studied
D. studies