Tom, clean up the broken glass _________ someone walks on it.

You mustn’t drive _____ you have drunk.

 —What should we pay more attention to if we go north in winter, Mum?—Nothing much. Take warm clothes________ the weather is cold.

. What the doctors really doubt is ______ my mother will recover from the serious disease soon.

—Why are you staring at me?—You look stupid! The way you wear is _______ annoys others most.