It's easy ________ water from the river.

[　　]

I think it ________ in the kitchen.

[　　]

I'll go to the Great Wall with my parents on Sunday ________ I ________ free.

[　　]

When passengers are waiting ________ a bus, they must wait ________ a queue.

[　　]

The West Lake is one of ________ in China.

[　　]

This coat is too short. Can you give me ________ one?

[　　]

When it ________. I'll go to school by ________.

[　　]

They don't go to bed ________ they finish their work.

[　　]

The weather is ________ hotter than it was last year.

[　　]

In England people ________ this line a queue.

[　　]