请用正确的特殊疑问词填空（英语）

____ do children celebrate Halloween?B:They celebrate it by playing"trick or treat".A.
41.A:____ are you going at the weekend?B:I am going to the Pelple'?B:____ is the twins' desk.A.
3;s Park.
2.A:____ is Mid-Autumn Festival?B:It usually comes in October or September

A:____ do they celebrate Teachers'Day?B:On September 10th

1. Where
2. When
3. How
4. Which

用有关how的特殊疑问词填空 

-（ how long  ）will he come back？

-in two dats

-（how often）does she go home？

-twice a month。

-（how long）is the yellow river

-sorry，i don‘t know let’s ask mr wu

-（how far）is the farm from here？

-it’s  about 2 kilometers