AIDS is said__________the biggest health challenge to both men and women in that area over the past few years.
Even many years after his divorce, he still couldn’t figure out the reason for his ____ marriage.
— Has Mr. Tom White arrived? — Yes, already. _____ he wait outside or just come in?
So far this year, no measures _______ against cruelty to animals despite their protest in the newspaper.
The boy can speak English _____ his elder brother, but his written work is just_____ excellent.
May 12th,2008 is a special day, _____, I think,that will be remembered by the Chinese forever.