There were so many people on the platform waiting to the train that we gave it up. A. che

问题补充：

There were so many people on the platform waiting to the train that we gave it up.

A. check

B. carry

C. find

D. board

答案：

A. check

B. carry

C. find

(答案→)D. board

解析：考查动词。A核对；B携带；C发现；D登(飞机、车、船等)。句意：有太多的人在站台上等待上火车，所以我们放弃了。根据句意说明A正确。