In China, those who want to enter universities have to _______ the entrance exams in June.
This is such a wonderful film ___ we have never seen.
___ nice, the food was sold out soon.
I think ___ knowledge of the Internet is ____ must in our work today.
Shelly had prepared carefully for her biology examination so that she could be sure of passing it on her first ______.
They are ___ little children that we all like them.