跪求这篇完形填空答案.

跪求这篇完形填空答案.
Bernard James was a
scientist.To be (1) _____ (accurate,correct,exact,precise) he was an
ornithologist:he studied birds.Several years ago he was (2) ______
(arranging,commanding,leading,planning) an expedition through the forests of
Brazil.
The expedition was (3) ______ (searching,seeking,shooting,studying)
for a rare type of silver-winged bird,which only lived in certain parts of the
forests.
His group were exhausted.They
(4) ______ (had been marching,had marched,marched,was marched)
through very difficult country for several days,without seeing the bird once.Bernard
looked up at the sky through the branches (5) ______ (about,beside,
from,over) his head.The sun was sinking,and he decided that it was too late
to (6) ______ (approach,arrive,rash,reach) the next village before
nightfall,the group soon decided to find a clearing in the forest (7) ______
(then,there,where,wherein) they could make camp for the night.It took them
longer than usual to fix the tents,because they were (8) ______ (all,
anyway,each,somewhat) feeling so tired.Bernard had had a strange (9) ______
(awareness,idea,feeling,sense) all that day:it was impossible to explain
why,but (10) ______ (after,since,though,when) they,marched through
the forest he had felt that they were (11) ______ (to be,been,being,
had been) followed.
After
setting up camp that evening,however,he was so exhausted that he (12) ______
(almost,already,still,yet) forgot about it.No sooner had he finished eating
(13) ______ (than,that,then,when) he fell asleep.In the middle of
the night,a strange sound woke him up.It was (14) ______ (as,as if,
alike,like) leaves moving in the wind — but here in the forest there was no
wind.He sat (15) ______ (around,back,down,up) and listened more
carefully.It was not leaves -- it was wings,thousands of birds’ wings movingin the night sky.Sliver wings,thousands of sliver wings!

1.accurate
2.leading
3.searching
4.had been marching
5.over
6.approach
7.where
8.all
9.feeling
10.when
11.being
12.almost
13.than
14.like
15.up