为你解答.
there do you How go (连词成句)
How do you go there?
Tom usually goes to Canada by plane.(对by plane提问)
How does Tom usually go to Canada?
The pencil is in the pencil-case.(对in the pencil-case提问)
Where is the pencil?
They usually go to school by subway.(用never替换usually)
They never go to school by subway.
They have classes at 8 : 05.(对at 8 : 05提问)
When(或What time) do they have classes?