The noise from the top floor,loud and constant,of the meeting-room_________ can be clearly heard in our classroom.
You have done so much work—you ______ pass the exam.
It's clear that neither he nor his parents______ the plan put forward at the family meeting.
She has worked at the bank for many years,nine ______.
The plane cannot ______ or land safely every time.
______ Chemistry is a branch of Chemistry.