Question

You'd better ________ that there is a train at 8:30 a. m..

1. A.
   be sure
2. B.
   make sure of
3. C.
   make sure
4. D.
   find

Answer 1

C
題意：你最好弄清楚在8∶30有一趟列車。make sure that...弄清楚……；確保/確定……，符合題意。