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To better understand the effects of crying in humans, it is also important to consider the animal counterparts to human crying (in the domain of communication), as well as other animal behaviors that might serve stress-reducing functions. In all mammals and most birds, offspring react with (25)_____ calls or distress calls to being removed from the parents. There can be little doubt that this is the phylogenetic basis of the acoustical crying of human infants. This very basic form of crying is meant to undo the separation from the parents and it is not likely to have any direct soothing function. Rather, this behavior seems to be associated with a state of increased arousal and result in soothing because of the comfort and support it elicited, that is, because it has (26)_____ its inter-individual function. In animals, distress calls are mainly (27)_____ by young offspring, and they are never accompanied by the production of tears. (28)_____ , candidates for the mechanisms that might contribute to reduction of distress in non-human animals (and in humans as well) can be found in displacement behaviors and stereotypes, (29)_____ are proposed to serve communicative functions as well

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We ________ been waiting long.

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Deborah is going to take extra lessons to _______ what she missed while she was away

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At the age of sixty, the man ___________and went to the country to live

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The management are making ________ to increase the company’s efficiency

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If only I ____ the books on the reading list before I attended the lecture on My Son sanctuary

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There was so much noise that the speaker could not make himself ____

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The land falls sharply ....... towards the river

Mrs. Hoa ______ our class English. 

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After the power went_____________ , I spent the night reading by candlelight

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Taking care of the needs of the old, the sick and the homeless is our ____

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She's terribly upset because her father passed __________ last week

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Please be noted that any purchased items which have a market value of over 300 dollars are ------- to a 15% duty charge

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He ______ on the phone for hours

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If she __________ him, she would be very happy

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"Just think, ______ 2 years' time, we'll be 20 both."

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My neighbor really gets on my nerves. She ______ the washing machine on late at night

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Many teenagers do not like it when their parents impose their decision ____ them

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Dad would occasionally ..... with an amusing comment

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– ______________ do you play table tennis?

– Once a week

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We play games _________the afternoon.