填空题 There is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. You may not use any of the words in the bank more than once.In families with two working parents, fathers may have more impact on a child's language development than mothers, a new study suggests.Researchers 1____________ 92 families from 11 child care centers before their children were a year old, interviewing each to establish income, level of education and child care arrangements. Overall, it was a group of well-class families, with married parents both living in the home.When the children were 2, researchers videotaped them at home in free-play sessions with both parents, 2____________ all of their speech. The study will appear in the November issue of The Journal of Applied Developmental Psychology.The scientists measured the 3____________ number of utterance (话语) of the parents, the number of different words they used, the complexity of their sentences and other 4____________ of their speech. On average, fathers spoke less than mothers did, but they did not differ in the length of utterances or proportion of questions asked.Finally, the researchers 5____________ the children's speech at age 3, using a standardized language test. The only predictors of high scores on the test were the mother's level of education, the 6____________ of child care and the number of different words the father used.The researchers are 7____________ why the father's speech, and not the mother's, had an effect."It's well 8____________ that the mother's language does have an impact," said Nadya Pancsofar, the lead author of the study. It could be that the high-functioning mothers in the study had 9____________ had a strong influence on their children's speech development, Ms. Pancsofar said, "or it may be that mothers are 10____________ in a way we didn't measure in the study."A. alreadyB. analyzedC. aspectsD. charactersE. contributingF. describingG. establishedH. qualityI. quotedJ. recordingK. recruitedL. totalM.unconsciousN.unsureO. yet