We have to admit that the biggest___________ facing the ecosystem is limited resources and the worsening environment.
A. mission B. challenge C. scale D. contribution
Your task will be to examine the___________ of constructing a new factory in the United Kingdom.
A. motivation B. appointment C. adjustment D. possibility
His friends were ___________and encouraged him to publish his ideas, but Copernicus was cautious.
A. technical B. official C. educated D. enthusiastic
The opportunities available will depend on your__________work experience and qualifications.
A. previous B. instant C. nationwide D. temporary
The consulting room is in a mess; I wonder why the doctor didn’t get everything _______before starting to see his patients.
A. in place B. in relief C. in surprise D. in detail
The teacher stressed again that the students should not _________any important details while retelling the story.
A. pick out B. sort out C. leave out D. make out
