求高手帮忙做下英语题21.[本题1分] Not until they got married _______ that

求高手帮忙做下英语题
21.[本题1分] Not until they got married _______ that he is a rude man.
(A) she had known
(B) had she known
(C) did she know
(D) she knew

22.[本题1分] With her children living abroad, she has her house ______ every December.
(A) paint
(B) painted
(C) be painted
(D) to be painted

23.[本题1分] To my surprise, I found the classroom is ______ at 8:00 in the morning.
(A) nothing
(B) blank
(C) bare
(D) empty

24.[本题1分] Whenever an earthquake occurs, see to it that the ______ and gas are turned off.
(A) electronic
(B) electrical
(C) electricity
(D) electric

25.[本题1分] With user-______ computer, people with little education can also learn how to use it.
(A) friend
(B) friendliness
(C) friendship
(D) friendly

26.[本题1分] His devotion ______ this country made him support 20 poor children to finish school.
(A) to
(B) in
(C) for
(D) at

27.[本题1分] Their dormitory is ______ ours in decoration.
(A) familiar to
(B) likely to
(C) similar to
(D) intended to

28.[本题1分] This method is ______ which saves us half of the time and effort.
(A) effective
(B) fruitful
(C) efficient
(D) influential

29.[本题1分] The students’ preference ______ learning online urge the teachers to learn more about computer and network.
(A) for
(B) in
(C) to
(D) with

30.[本题1分] In one aspect, the seven-day National Day Holiday ______ the students’ distraction from study.
(A) as a result
(B) as a result of
(C) results in
(D) results from