The wheat fields are irrigated by water_____（bring）from a pond through bamboo pipes.(这题希望详解一下啊~~)
____________,we plan to hold a class meeting.
A.Time permitting
B.Time permits
C.If time is permited
D.Time permitted
(这题非常不懂~~~~)
We can't keep our eyes_______(shut) to all this.(请讲解一下keep的用法)
填过去分词brought，这里是过去分词短语作定语修饰water;因为水是被人们从池塘里引过来的。相当于一个定语从句 which is brought from a pond through bamboo pipes,修饰名词water.这句话的意思就是许多麦田是通过竹管从池塘引水来灌溉的。
选A。Time permitting相当于if time permits,去掉if,permit要变成-ing形式，意思是如果时间允许的话，我们打算开班会。permit翻译为允许，为不及物动词。
填shut. 这里的shut是过去分词转换成形容词“闭上的”，作宾语补足语。即keep+名词/代词+形容词/...
keep用法比较多，分为系动词和行为动词。
系动词为“保持”的意思，后加形容词。如：It is important for us to keep healthy.保持健康对我们来说非常重要。
行为动词意思比较多，有“保管，照顾”，“饲养（宠物）”，“种（花草之类的）”，“使...处于...状态”。如：
Can you help me keep the cat for several days?你能帮我照顾我的猫几天吗？
Many children like keeping dogs.许多孩子喜欢养狗。
My grandpa likes keeping flowers.我的爷爷喜欢种花。
“使...处于...状态”即keep+名词/代词+形容词/...。如：
We should keep our classroom clean and tidy.我们必须保持我们教室的整洁干净。
keep doing sth.不停的做某事；keep sb. doing sth.使某人不停的做某事。如：
He kept us waiting for him for an hour.他让我们一直等了他一个小时。
She kept talking about her experience in Amercia .她一直不停的在讲她在美国的经历。