问题
选择题
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
答案
答案:B
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
答案:B