Buying clothes is often a time-consuming job because those clothes that a person likes are rarely the cones that fit him or her.
To understand the situation completely requires more thought than has been given thus far.
Two weeks was too long
Five times five makes twenty five
law and order 法制 soap and water 肥皂水
a cup and saucer 茶杯碟子 fork and knife 刀叉
the needle and thread 针线 trial and error 反复尝试，不断摸索
horse and carriage 马车 time and tide 岁月
bread and butter 奶油面包 the ebb and flow 盛衰，潮涨潮落
如： If law and order not preserved, neither the citizen nor his property is safe.
A. is B. are C. was d. were
Linguistics is a branch of study on human language.
The chaos was stopped by the police
The news is a great encouragement to us
A series of debates between the lectures was scheduled for the next weekend.
Bread and butter is our daily food
Time and tide waits for no man
1. 由and, both …and, 连接的并列主语，和both ,a few, many ,several 等修饰语后面谓语动词通常用复数形式。
Few people know he and I were classmates when we were at college.
2.集体名词police, public, militia, cattle ,class ,youth后常用复数形式的动词
The Chinese people are brave and hardworking
The cattle are grazing in the sunshine
The Japanese were once very aggressive
The rich are not always selfish
Three million tons of coal were exported that year
1) 由连词 either…or…; neither…nor…; whether… or…;not only…but (also) ;or 等连接的并列主语
Neither money nor fame has influence on me
Not only you but also he is wrong
Blocking the open-sided porch, framed by the enveloping fog, stands a tall grave-faced policeman.
Just outside the ruins is a magnificent building surrounded by tall trees.
Although a great number of houses in that area are still in need of repair, there has been improvement in the facili
2. 主语带有(together/along)with, such as, accompanied by, as well as, no less than, except, besides, with, combined with, in addition to , including, together with 等等附加成分，谓语的数不受附加成分的影响仍然与主语保持一致
Professor Taylor , with six of his students ,is attending a conference in Boston organized to compare current practice in the United States with those of other nations.
The president of the college, together with the deans, is planning a conference for the purpose of laying down certain regulations. (1981年考研题)
Despite much research, there are still certain elements in the life cycle of the insect that are not fully understood.
There are many valuable services which the public are willing to pay for, but which do not bring a return in money to the community.
4.一些表示数量的短语与名词连用时候，谓语动词的数取决于名词的数，名词是复数，谓语动词用复数，反之就用单数。这些短语包括：a lot of /lots of; plenty of/heaps of; half of; two-third (three-fourth…) of; eighty(ten, twenty…) percent; part of; rest of ; none of 等等
Two-thirds of people present are women
Lots of damage was caused by the fire
5.集体名词作主语时，谓语动词的数取决于主语表示的意思和数，当表示整体时候，谓语动词就用单数，当强调集体中的个体时候，谓语动词就用复数。这些集体名词如：army, audience, band ,government ,group ,flock, police, public ,staff ,team ,troop. Crowd, firm, family 等等
The family is the basic unit of our society
The family were watching the TV
The audience was enormous
The audience were greatly moved at the words
a great many + 可数名词复数 谓语用复数
a number of + 可数名词复数 谓语用复数
the majority of + 可数名词复数 谓语用复数
the number of + 可数名词复数 谓语用单数
each/every + 可数名词复数 谓语用单数
neither/either of + 可数名词复数 谓语用单数
one and a half + 可数名词复数 谓语用单数
more than one + 可数名词单数 谓语用单数
many a + 可数名词单数 谓语用单数
the greater part of
a large proportion of
one third of
the rest of
not only….. but also ……
not …..but ……
谓语的数与主语的第二部分(即(n)or/ but also/ but引导的后面部分)一致.
More students than one have been referred to
More than one student is going to buy this book