在命令行中输入"interface ?"的作用是?
A. 显示当前配置视图下interface命令的所有子命令
B. 显示当前配置视图下interface开头的所有命令
C. 显示当前配置视图下的所有可用命令
D. 以上答案都不对
Excuse me,but can you tell me ___________?
A. where can I get to the library
B. where I can get to the library
C. how can I get to the library
D. how I can get to the library
I’d like to know ________ Chinese.
A. when he began to learn
B. when did he begin to learn
C. when did he begin learning
D. when did he began learning
“Have you seen the film?” he asked me. →He asked me _______.
A. had I seen the film
B. I had seen the film
C. if I have seen the film
D. whether I had seen the film
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