1.  Earlier this year we went to an African safari that was exciting and

      (A)                              (B)                              (C)

adventurous, to say the least.

                            (D)

에서 답이 (B)인데 왜 틀렸고 어떻게 고쳐야 하나요?

(B)가 틀린 이유를 모르겠어요.

시제가 틀린건가요???????

2. The new accountant  had  erroneously  filed  all of the taxes report with the

                                                   (A)                                   (B)

wrong agency, causing a series of problem over the weeks that followed.

                            (C)                                                                       (D)

(D)가 틀렸는데 왜 틀렸는지 갈쳐주세요..

3. As we were unable to fill all requests for the annual banquet, either accept

  (A)                                                                                              (B)

the number of tickets you have allotted or request a refund by the end of the

                                                   (C)                                    (D)

week.

(C) 가 틀렸는데

allot이 4형식 동사인가요?

그래서 수동으로 바껴야 되는건가?

그리고...

저위에 문장은 2개 잖아요. As~ banquet 이랑 accept~week

그럼 접속사가 As 하나만 있어야 하는데 either ~or~도 접속사

그럼 접속사가 2개, 문장이 두갠데 접속사가 두개가 올수 있나요?

아님 제가 문장 구조 파악을 잘못하고 있을수도 있으니

어케 되는건지 갈쳐 주세요~