As a new graduate, he doesn’t know_______it takes to start a business here

My best friend is _______ than me.— That’s why there are hardly any smiles(笑容) on his face.

You ________ a child You can take care of yourself— Really? But I am only 15 years old [ ]

It is ______cold today. But unluckily, we still have ________homework to do.

_________ I felt somewhat disappointed and was about to leave，something occurred which attracted my attention.