TOEIC的練習題..已有答案了..請幫我解釋為什麼 - 社會議題

1. The ECO is now faced with a decision whether to downsize the
current operations or lay _____ 500 employs. 答案是(C)

(A) addition
(B) an addition of
(C) an additional
(D) in addition


2. Paul is a man _____ I believe has the best understanding of what it
is thatmakes our product different from others on the maket.
答案是(A)........這題是受詞,不是應該是B嗎???
(A) who
(B) whom
(C) whose
(D) how
3. By teaming up, we finally solved the thorny problem that might __
___ never have been solved by one person alone. 答案是(D)
(A) solely
(B) fully
(C) further
(D) otherwise
4. A few days ago that newspaper ran an editorial which spoke_____
of those who took the issue of global warming seriously.
答案是(B)
(A) widely
(B) highly
(C) deeply
(D) broadly
5. As the owner or potential owner of a small business, ______will
come a time when you need more capital, so you'll start thinking
about borrowing money. 答案是(C)

(A) it
(B) that
(C) there
(D) you
6. All CEOs need _____ that it pays to introduce an energy efficiency
program that can help save their business money. 答案是(C)
(A) convince
(B) to convince
(C) to be convice
(D) be convincing