So necessary _____ it to learn about their customs that I will attend a
special lecture next week.
A. I have found B. I feel C. have I found D. will I feel
Your son c
ame to my class every day, but his attitude _____ he was not really interested at all.
A. expressed 
B. suggested C. explained D. described
It' s a pity that there are many teenagers _____only on-line activity is chatting with their e -pals !
A. who B. that C. which D. whose
- Do you mind my opening the window?
-______I feel a bit cold.
A. Of course not. B. I would rather you didn' t.
C. Go ahead. D. Why not?
Father said he would come to my graduation ceremony, he didn't, _______.
A. though B. personally C. indeed D. anyway
Be _____we can' t expect an absolute freedom of expression.
A. confident B. creative C. grateful D. reasonable
