麻煩英文達人幫忙解文法問題

1. ________, I cannot agree with him on the matter.A: Much as I respect him B: As I respect him muchANS:A 請問為何是A呢??Much as 是儘管的意思 這樣配合語意 A才恰當2.Janet put forward the proposal that the program ________ until Mr. Brian Reynolds came back from abroad.
A: be postponed B:would be postponed C:had been postponedANS:A 請問為何選A 選C卻不對呢???put forward (提議),其後的that字句，有應該的意思時，則要用假設法，亦即要用原形動詞。
原：
Janet put forward the proposal that the program should be postponed until Mr. Brian Reynolds came back from abroad .
PS: should可省略。
3.Not only ________ most male birds have extremely beautiful feathers, they know how to use them.A: do B: are C: will D:canNot only後接的句子要倒裝
原:
Most male birds not only have extremely beautiful feathers,they know how to use them.
~ Not only do most male birds have extremely beautiful feathers, they know how to use them.

PS. 一般動詞是have 不可用are
ANS:A Not only後要接動詞 為何不能選B呢?? 4.The man spent so little time with his family ________ his daughter didn’t even recognize him.A:and B: before C: as D: thatANS:D 請問選C為何不行呢?

這個是so.....that　如此.....以至於
PS:as／so＋形容詞或副詞原級＋as…意為“…和…一樣…”。 。5. A single bacteria, ________ the right conditions, divides rapidly into colonies of billions in one day.A:giving B: to give C: given D: having giANS:C 請問這算是分詞構句嗎?? 選A為何不對呢??
原：
A single bacteria, which is given the right conditions, divides rapidly into colonies of billions in one day.
非限定修飾的形容詞子句，在 who/ which +be+ N
可簡化為先行詞的同位語。which is 可刪剩下given

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1. 我覺得much後面應該加個名詞，否則看起來很怪。故選a.
2. 如果用c，應該放前面，後面再加個would have been postponed。故選a.
3. 你用are的話，那後面的have是不是該有點變化。故選a比較適當。
4. 用as變成當的意思，不過我覺得第四題用whom會比較適當，有點會混淆。