单选题：Direetions: This part consists of a short passage. In this p

Direetions: This part consists of a short passage. In this passage, there are altogether 10 mistakes, one in each numbered line. You may have to change a word, add a word or delete a word. Mark out the mistakes and out the corrections in the blanks provided, if you change a word,cross it out and write the correct word in the corresponding blank. If you add a word, put at insertion mark (/1) in the right place and write the missing word in the blank. If you delete a word, cross it out and put a slash (/) in the blank.
Example:
　　Television is rapidly becoming the literature of our periods.　　(1). time/times/period_
Many of the arguments having used for the study of literature　　(2). /_______
as a school subject are valid for/l study of 'television.　　(3). the
　　 Britain almost more than any other countries in the world must
seriously face the problem of building downwards, that is to say, of　　1_______
accommodating a considerable proportion of its population in high
blocks of flats. It is said that the English man objects against this type　　2._______
of existence, but if the case is such, he does in the fact differ from　　3._______
the inhabitants of most countries of the world today. In the past our
own blocks of flats have been associated with the lower-income groups,
and they had lacked the obvious provisions, such as central heating,　　4._______
constant hot water supply, electrically-operated lifts from top to bottom, as well as such details as easy facilities for disposal of dust and rubbish　and storage places for baby carriages in the ground floor, playgrounds
for children on the top of the buildings, drying grounds for washing.　　5_______
It is likely that the dispute regarding flats versus individual houses
will continue to rage for a long time as far as Britain is concerning.　　6._______
And it is fortunate that there should be hot feelings on both sides　　7._______
whenever this subject is raised. Those who oppose the building of
flats base their case primarily in the assumption that everyone prefers　　8._______
an individual home and garden and on the high cost per unit of
accommodation. The latter ignores the higher cost of providing full
services to a scattered community and the cost in either money and　　9._______
time of the journeys to work for the urban resident.　　10._______