问题
选择题
More than a dozen students in that school ______ abroad to study medicine last year. [ ]
A. sent
B. were sent
C. had sent
D. had been sent
答案
答案:B
More than a dozen students in that school ______ abroad to study medicine last year. [ ]
A. sent
B. were sent
C. had sent
D. had been sent
答案:B