Don’t give up halfway Andy. You’ll succeed if you keep on working like this.A. in turnB.

问题补充：

Don’t give up halfway, Andy. You’ll succeed if you keep on working like this.

A. in turn

B. on time

C. in time

D. by accident

答案：

A. in turn

B. on time

(答案→)C. in time

D. by accident

解析：句意：不要半途而废，如果你一直这样认真的工作，你会成功的。四个选项的含义分别是：A. in turn依次，B. on time 准时，C. in time及时，迟早，D. by accident偶然地，根据句意选C。