问题

AIDS is said _______the biggest health challenge to both men and women in that area in the past three years.
A:that it is
B:to be
C:that it has beenDto have been
D:to have been
B:to be
C:that it has beenDto have been
D:to have been
正确答案是:
同类题型
aduation ceremony,_______ at 9 pm yesterday, wasfollowed by a film
By _____ local doctors and nurses, We hope _____ more patients.
o much work _________, they feel worried all thetime.
I didn’t watch the chat show yesterday. — . I got home too late to watch it.
To be honest, I don’t want to get a job I’m chained to a desk all day. It will bore me to death.