1 any

2 whatever

3 whichever

4 whatsoever

1 how

2 what way

3 what

1 old practice

2 classifier: 个 gè

1 the ways of the world

1 accident

2 classifier: 桩 zhuāng

3 classifier: 起 qǐ

4 classifier: 次 cì

1 complete change from the old rut (idiom); dramatic change of direction

2 a volte-face

3 to change old practices

1 it's a small world (idiom)

1 meeting an old friend in a foreign place (idiom)

1 What can you have against it? (idiom)

2 We should do this.

3 Go for it!

1 of what use is it

2 (idiom)