【推荐1】—Tom, did you ever see _____ book that I bought with you last week?
—No, but Dad saw____ book under the bed this morning. I’m not sure if it is that book.

A．a, the

B．the, the

C．the, a

【推荐2】After being elected ______ President of ________ United States, Barack Obama moved with his family into ________ White House.

A．/; the; /

B．/; the; the

C．the; /; /

D．/; an; the

【推荐3】The young man will work in ____school as a maths teacher.

A．the	B．a
C．an	D．/