Choose the closest paraphrased version after the following sentence or the italicized part. Blacken the letter corresponding to your choice on the ANSWER SHEET.
Essentially, I am putting together a huge jigsaw puzzle. The edge pieces are in place and various areas are getting filled in, but pieces are missing.（ ）
A.正确答案A…I am trying very hard to complete the complicated work.
B.…playing jigsaw puzzles is helpful to complete the work.
C.…I play jigsaw puzzles in my spare time to relax myself.
D....challenging tasks call for joint efforts of many people.
