All the government leaders and policemen in Thailand must see to ______ that every citizen should stay safe and sound in the terrible flood.

Let’s soccer together, shall we?

Mum, have you seen my mobile phone? —_______you bought last week? I’m sorry I haven’t seen _______.

It’s time to say goodbye to my school.I’ll always remember the people have helped me.

It was foolish of him to ______his notes during that important test, and as a result, he got punished.