If _____, please buy me a backpack while you are at the supermarket.

Most of the countries in the world hold the belief _____ Taiwan is inalienable part of the People’s Republic of China.

. My mother was against my idea while my father was _____ it.

He suggested _____ a conference and it suggested he _____ in our project.

. Jam never take others’ advice, so _____ is no use _____ him to change his mind.