英语选择啊.各位英语达人帮帮忙啊

英语选择啊.各位英语达人帮帮忙啊
I find it so boring to practice so much and I’m getting ____________.
A. disappointed B. dissatisfied C. discouraged D. dismiss
7. People have been used to __________ business cards with each other when they first meet.
A. exchanging B. exchange C. exchanged D. have exchange
8. She says ____ is necessary to practice as much as possible until they are fixed in my mind.
A. this B. that C. which D. it
9. As long as I work hard, my dream of ________________ to Harvard University will come true.
A. admit to B. admitted to C. be admitted to D. being admitted to
10. The __________ population we have in China, the more problem we will have to face.
A. larger B. big C. more large D. smaller
11. Seldom ________ his wife punishes her children for speaking out their own ideas freely.
A. I saw B. I have seen C. have I seen D. do I see
12. 6. ____ the news, my father immediately set off for Changsha.
A. Hear B. To hear C. Being heard D. Hearing
13. 3. The Red Cross was responsible for the ______ of medical supplies.
A. contribution B. operation C. distribution D. cooperation
14. The film is based on a short story ____ is familiar to those villagers.
A. such B. which C. what D. when
15. It' s required that the students _______ the term paper tomorrow.
A .finished B. finish C. will finish D. may finish

C 7.A 8.D 9.D 10.A 11.D 12.D 13.C 14.B 15.B
11题C,D不确定,倾向于D,其他可以保证正确
再问： 我有朋友做11选C。。好纠结
再答： 其实我觉得用一般现在时和现在完成时都可以，无法说哪个错了，只是哪个更好

和我的回答一样，看来我也对了

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