Smoking, ______ is a bad habit, is popular with the young.

h is a language shared by several diverse cultures ,each of____ uses it somewhat differently .

king about buying cars, I prefer acar less than 100,000 yuan to ______ over the amount

8, Bank was elected _________ president of the Royal Society,________ position he held for 43 years

_____his timely help ,Kate overcame the hardship at last.