比赛中，只有（ ）排队员可以拦网，（ ）排队员和（ ）不可以完成拦网或参与拦网的集体。

A. She impresses the man with her performance.
B. She has no difficulty finishing the assignments.
C. She often fails to turn in her homework on time.
D. She comes late to class from time to time.

A. It improves her performance in other subjects.
B. It enables her to help her father in business.
C. It makes her lose interest in Spanish.
D. It presents great difficulty for her.