8. Exciting as its special effects are ________, there is too much violence in the film.
| A.to watch | B.to be watched | C.watching | D.being watched | 
English is ___ useful language.
| A.a | B.an | C.the | D./ | 
The Chinese teacher looks so pale. She ___ be ill.
| A.must | B.mustn’t | C.can | D.need | 
---Would you like me to carry the box? ----_____.
| A.Yes, I would | B.Yes, I'd like to | C.It’s pleasure | D.No, thanks. I can't manage it myself | 
---Shall I show you how to write? ----_____.
| A.Yes, of course | B.Thank you | C.Not at all | D.You’re welcome | 
___ is everyone’s duty___ the law.
| A.That; do obey | B.It; to obey | C.That; obeying | D.It; obeying |