The Nuclear Security Summit is an initiative of Mr. Obama, considers nuclear terrorism to be one of the greatest threats to international security.
They promise that the work would all be finished _____ next week.
—I don’t like chicken _______ fish. —I don’t like chicken, _______ I like fish very much.
Fred is second to none in maths in our class, but believe it or not, he _______ passed the last exam.
He wanted to read more, so he asked his friends if there was _______ to read.
Does ________ matter if he can’t finish the job on time?