A. bulid B. are built C. built D. were built
A. sent B. was sent C. had been sent D. be sent
A. or B. and C. but D. as well as
A. for B. or C. so D. while
A. boys B. boy C. boys' D. boy's
A. 内容 B. 精华 C. 质量 D. 长度
A. 目标 B. 答案 C. 建议 D. 能力
A. 确切地 B. 容易地 C. 大致地 D. 相近地
A. 例如 B. 结果 C. 原因是 D. 还有
A. 有帮助的 B. 传统的 C. 难得的 D. 开心的