The reason _____ he failed the exam was _____ he had not worked hard.
A. why……if
B. why……that
C. that……why
D. why……what
查看答案
命令A>CD TEST的执行结果是()
A. 查询TEST子目录
B. 进入TEST子目录
C. 建立批文件TEST.BAT
D. 建立新的子目录TEST
The person _____ you were talking to was an American.
A. who
B. whom
C. which
D. as