Question

3. (2015 •河北) Mom,I'm very for all your love.

   A. thankful   B. careful

   C. useful   D. helpful

Answer 1

3. A

3. A解析：四个选项的含义分别是：thankful 感激的;careful小心的;useful有用的; helpful有帮助的。结合本题语境可知， “我”感谢妈妈对“我”的爱，故thankful符合题意。