—Have you finished your book report?
—Not yet. I couldn't________on it with so loud music next door last night.
A．draw B．devote C．direct D．concentrate
Once we have________some knowledge, things do not become more difficult, but comprehensible.
A．required B．acquired C．inquired D．inspired
The chief editor demanded that the article ________immediately.
A．must be submitted B．would be submitted C．submits D．be submitted
Tom is a promising student. I am sure that with his________effort, he will make a very successful scientist.
A．usual B．constant C．content D．normal
We are hoping that these measures taken by the local government will help________things a bit.
A．sweep up B．speed up C．make up D．save up
The girl acted properly and confidently during the job interview, which made a deep________on the employer.
A．impression B．expression C．permission D．admission
