Who is running on the sports field—It be David, He is ill at home.

Smoking, ______ is abad habit, is popular with the young.

China’s one-child policy has been in place for decades and is causing ageing problem. So the news that China abandons one-child policy is _________ with cheers from many married couples.

The _______ man’s son is only _______.

Do the students learn any foreign language in your school?— Yes, more than one ________ taught in this school.[ ]