还有没有人能解释这三个题的了！！？？？？

1.
                    Many
teenagers undergo stress, but results of a recent study indicate (that the
patterns of stress that girls experience are more likely to result in
                depression than
                are those that boys experience.)

2.
                    A study
published in the British Medical Journal showed (that women who ate nuts more
than five times a week were about one third less likely to suffer from coronary
heart disease than were those who ate no
nuts at all.)

(D)than
women eating eating
                表示正在进行

(E)than were those who ate

3.Results of a United States
study published in the Annals of Internal Medicine have shown (that college-educated women and women living in
the South and West are significantly more likely to use supplemental hormones
than women living in the Northeast and Midwest.)

    

顶！！