1 . I don’t understand what the engineer means, but I’ve got ______ rough idea of _____ project plan.

A．the; a

B．不填; the

C．the; 不填

D．a; the

2 . With ________ word “PM 2.5” repeatedly appearing in ________ media reports, the public can’t help wondering what it really means.

A．the; \

B．a; the

C．the; the

D．\; the

3 . —Don’t you think Obama is _____ success?
—Yes, I do. He is popular with _____ public in America.

A．/ , a

B．a, a

C．the, a

D．a, the

4 . I often have conversations with John over ______ telephone, while keep in touch with Tom by ______ letter.

A．不填；the	B．不填；a
C．the；不填	D．the; a

5 . The sign reads "In case of_______fire, break the glass and push______red button. "

A．/; a

B．/; the

C．the; the

D．a; a

6 . I can’t remember when       turning point occurred exactly, but it might be      summer morning when I was in New York．

A．不填；a

B．a; a

C．the; a

D．a; the

7 . --- Haven’t you heard the news?
--- What news?
--- Some of the workers are on ____ march while others are on ____ strike.

A．/; the

B．the; /

C．/; /

D．the; the

8 . —Stay a bit longer, please. It’s been such _______ fun having you here.
—Thank you, but I’ve got _______ early start tomorrow morning.

A．/ ; the

B．a; an

C．/; an

D．the; an

9 . My father is clearly in____ dilemma about how to handle___ quarrel between us.

A．the; a

B．/; the

C．a; the

D．a; /

10 . As we all know, surfing_____ Internet has now become _____popular means of obtaining information.

A．the; the

B．/; the

C．the; a

D．/; /