一般现在时： 问别人经常做的事情，做哪个。
Which country do you like?
Which style do you recommend?
Which color do you choose?
Which size do you wear?
Which company do you work for?
Which fruit do you eat?
Which of these do you want?
Which do you want?
Which team are you on?
现在进行时：
问别人正在做什么，做哪个。
Which hotel are you staying?
Which book are you reading?
Which food are you cooking?
Which game are you playing?
Which food are you cooking?
Which subject are you learning?
一般过去时：
问别人已经做过的事情，做哪个的。
Which one did you do?
Which food did you cook?
Which game did you play?
Which language did you learn?
Which item did you make?
一般将来时：
问别人将要做的事情，要做哪个。
Which one will you do?
Which food will you cook?
Which game will you play?
Which language will you learn?
Which item will you make?
一般过去将来时：
问别人想要做的事情，想要做哪个。
Which one would you do?
Which food would you cook in the kitchen?
Which game would you play on the playground?
Which language would you learn at school?
Which item would you make in the garage?
