She ________ on her work so much that she didn’t notice that a crowd of people had _______around her.
The direction _____ which the president would go was kept secret _____ safety concern.
The computer system is meant to provide students with quick and easy ______ to the digital resources of the library.
Those who have _____ money than sense may sometimes act foolishly.
The teacher,together with the students, ______ discussing Reading Skills that _____ newly published in America.
Three fourths of the homework _______ today.