除了现在进行时,可以跟任何时态.
1.When do the birds fly to the south every year?
鸟儿每年何时飞往南方?一般现在时.
2.When will you go to America?
你何时要去美国?将来时.
3.When did you come back to China?
你什么时候回到中国来的?过去时.
when后面跟什么时态
除了现在进行时,可以跟任何时态.
1.When do the birds fly to the south every year?
鸟儿每年何时飞往南方?一般现在时.
2.When will you go to America?
你何时要去美国?将来时.
3.When did you come back to China?
你什么时候回到中国来的?过去时.