英语单选5道21.The most important thing about cotton in history is

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英语单选5道
21.The most important thing about cotton in history is ________ part that it played in _______ Industrial Revolution.
A./; / B.the; / C.the; the D.a; the
22.It hit me ______ my mother could be the proper person to persuade dad to change his mind.
A.which B.what C.that D.if 23.he will return to his homeland,but I don’t know what country he is studying in.
\x05A.It is long before that\x05\x05 B.It is before long that\x05\x05\x05
C.It won’t be long before\x05\x05D.It will be before long that
32.According to our agreement,all payments be made by the end of this month.
\x05A.will\x05\x05 B.shall\x05\x05 C.may\x05\x05 D.can
35.He found his son by letters and papers and very worried.
\x05A.surrounding; look\x05\x05\x05B.surrounded; looked
\x05C.surrounding; looking\x05\x05\x05D.surrounded; looking

C
C
B
B
D
再问：麻烦你把每个都解释一下
再答： 21.特指的工业革命加the，工业革命时期的那段历史特指的用the part 22.it是形式主语，后面的整个句子是真正的主语 23.将来他会回来，用before long表示不久的将来，主句将来时态，从句现在时态 32.shall用在条约、规章、法令等文件中表示义务或规定,一般用于第三人称应,必须 35.被包围状态用ed，looking是儿子的表情，伴随状语

英语单选5道21.The most important thing about cotton in history is The most important thing about cotton in history is the role The most important thing about cotton in history is __part t Themost inmportant thing about cotton in history is ______pa Is friendship the most important thing in the world?why? money,it is the most important thing in the world what is the most important thing in the world 英语谜语答案 Happy is the most important thing in your life 意思 Which is the most important thing in mother"s life? Is money the most important thing in life? h____________ is becoming the most important thing in our da 英语作文 what is the most important thing in your compus life?