26. Over a third of the population was estimated to have no ________ to the health service.

A) assessment B) assignment C) exception D) access

27. Professor Taylor‘s talk has indicated that science has a very strong ________ on the everyday life of non-scientists as well as scientists.

A) motivation B) perspective C) impression D) impact

28. These goods are _______ for export， though a few of them may be sold on the home market.

A) essentially B) completely C) necessarily D) remarkably

29. The shy girl felt ____ and uncomfortable when she could not answer her teacher‘s questions.

A) amazed B) awkward C) curious D) amused

30. Frequently single-parent children ________ some of the functions that the absent adult in the house would have served.

A) take off B) take after C) take in D) take on

26-30 DCABD