1. Many lifestyle patterns do such _______ great harm to health that they actually speed up ______ weakening of the human body.
A. a; / B. /; / C. a; the D. /; the
2. I’d appreciate ______ if you would like to teach me how to use the expression once more and I always appreciated _______ me with my English in the past.
A. that; you to help B. this; you helping
C. it; you to help D. it; your helping