1 . —What ____________ fun it was to look around the Slender West Lake last week!
—Yeah. It was quite ____________ unforgettable experience.

A．a;不填	B．不填;an
C．a; an	D．不填;不填

2 . Hunger is _____ number one global health risk, so the WFP has organized a lot of programmes, which helps people most at ________risk.

A．the； /	B．a； /
C．the；the	D．a；a

3 . Eric didn’t feel at ____ease in the party, because he was afraid of losing ____face.

A．the; a	B．an; /
C．/; the	D．/; /

4 . This is      challenging job I mentioned to you the other day． Have you had anyone in       mind for it now?

A．a, the	B．the;/
C．the, the	D．a:/

5 . I don't think the experiment is ___ failure, because it has provided us with ___valuable experience for our future tests．

A．不填; 不填	B．不填; a
C．a; a	D．a; 不填

6 . In more recent decades, California has become __________ home to more people from Asia.

A．a

B．an

C．the

D．/

7 . This book tells _____ life story of John Smith, who left ______ school and worked
for a newspaper at the age of 16.

A．the; 不填	B．the; the
C．a; the	D．a; 不填

8 . We are lucky enough. What ____ fun it is to enjoy ___ peace of the country.

A．the; /	B．/ ; the
C．a; the	D．the; the

9 . It is believed that traveling to Yangzhou in __ __ March is __ __ enjoyable experience.

A．/; the	B．the; an
C．不填; an	D．the; the