Have you seen the movie Wolf Warriors II？

Yes． This is ___ educational film and it has become one of ___ most popular films in the world．（　　）

A．a； /B．a； theC．an； theD．/； the

More and more foreigners are becoming interested in Beijing Opera．

That's true． It's an important part of Chinese ___．（　　）

A．cultureB．inventionC．customD．influence

Nick， I lost my pen and I couldn't find ___ anywhere．

There are many pens in that box． Just take ___．（　　）

A．it； itB．it； oneC．one； itD．one； one

I could ___ control my feelings at the moment． The song brought back so many childhood memories．（　　）

A．hardlyB．reallyC．clearlyD．nearly

___ I swim here？

I'm sorry． Children ___ swim alone here． It's very dangerous．（　　）

A．Must； can'tB．May； must

C．Can； mustn'tD．Can't； can