請EnglishGrammar高手解惑(reward20) - 工作

我想請教以下幾個關於文法的題目 請大大附上翻譯和選擇選項的詳細解析 謝謝!!
1. Though McDonald's brothers have their own successful fast-food chains, their mother still wishes that they _____ good, steady jobs that provide a regular pay check.
A. have B. are having C. have had D. had
2. If Mrs. Smith _____ younger and in better condition, she would have run after Judy, but all she could do was stare in amazement.
A. was B. were C. would be D. had been
3. Something is wrong with my watch. I'll have it _____.
A. repair B. repairing C. repaired D. to repair
( 這題的答案為什麼是C不是D ? )
4. We are taught _____ our enemies.
A. forgive B. forgave C. to be forgiven D. to forgive
5. John 's English is poor; he can't make himself _____.
A. is understood B. understand C. understood D. to understand
( 這題答案為什麼是C不是B ? )
6. Those who have an inclination for crazy technological advances aren't hard _____.
A. to be pleased B. to please C. to be pleasing D. to have pleased
7. Much of your success, both in your work and social life, _____ how you listen.
A. is related to B. has an impact on
C. have a lot to do with D. are of great importance to
8. Two thieves were seen _____ the house and stole away some valuables.
A. to enter B. to enter into C. enter into D. entered
( 答案為什麼是A不是B呢 ? )
9.The parents were worried and tried to find the _____ child.
(這題空格的答案是missing, 但解析上說也可以填lost, 為什麼不是
填losing?)
10. My train started at six, _____ in Taipei at ten.
A. and arrive B. arrived C. arriving D. somthing leaving
(答案是C但我選B)
11. My daughter was riding her bicycle with her hair _____ in the
wild.
A. blew B. blown C. to blow D. blowing
(答案為什麼不是A而是D呢 ? )
請幫忙翻譯句子及解析選項 謝謝^^
Update:
給Louis:
第二題的答案是D, "had been"
可以麻煩你解說看看嗎?謝謝
還有
9.The parents were worried and tried to find the _____ child.
(這題空格的答案是missing, 但解析上說也可以填lost, 為什麼不是
填losing?)
答案是missing或lost
我知道他是被弄丟 應該要用被動式 所以lost沒有問題
但為什麼是missinsg而不是missed?搞不懂:(
另外, 第1.2和6題麻煩翻譯一下,謝謝你:D