Please it up and you’ll succeed .
A. hold; in time
B. hold; on time
C. keep; in time
D. keep; on time
网友回答
A. hold; in time
B. hold; on time
(答案→)C. keep; in time
D. keep; on time
解析：考察固定搭配。In time及时，迟早；on time准时；keep up坚持；hold up举起，支撑；句意：请坚持下来，你迟早会成功的。根据句意说明C正确。