[問題]TOEFL 2004年10月真題 Q40 (structure)

[rakeilum]

40.(A) With more than half the world's (B)annual yield of 50 million tons of soy beans, an (C)important source of protein, is (D)grown in the United States.
答案是(A), 請問(A)為什麼錯呢?

[Behemoth]

with 要拿掉
否則句子無主辭