1. Soon after he transferred to the new school, Ali found that he had______________(很难跟上班里的同学)in math and English。
2. If she had returned an hour earlier, Mary___________________(就不会被大雨淋了)。
3. It is said that those who are stressed or over overtime are_______________(更有可能增加体重)。
4. ________________(很多人所没有意识到的)is that Simon is a lover of sports, and football in particular。
5. The study shows that the poor functioning of the human body is ______________(与缺乏锻炼密切相关)。

答案：
1. difficulties in catching up with his classmates
2. wouldn’t have been caught in rain。
3. more likely to gain weight
4. What most people haven’t realized
5. closely related to the lack of exercise。