Xiao Fei always keeps his phone switched on.
举一反三
- Helen always keeps her smartphone switched off ________ she’s expecting a call. ( ). A: once B: since C: unless D: when
- Why is Xiao Fei mentioned at the beginning of the passage? A: Because his experience reflects the attractiveness of the latest technology. B: Because he was very impressed by the 4G service. C: Because he is one of the many millions of smart phone game players in China. D: Because he showed signs of addiction to the smart phone gaming.
- Chris always keeps his sufferings to himself. He never has a _____ (心腹朋友) to talk about his problems and troubles.
- His mother always keeps a candle in the house ______ there is a power cut. A: in the case B: in case C: frightened D: in the event
- Start-Up Diagnostics are a diagnostic routine that regularly operate automatically when the CNC is switched on.