招贤纳士
单项选择.
_______ number of students in our school _______ more than 2000.
A、The, is
B、A, are
C、The, are
D、A, is
— What about _______dictionary on the bookshelf? 
 — It's very useful, I think. [     ]
A、a
B、an
C、the
D、/
— You've dropped _________ "s'' in the word "acros''.
— Oh, _________ letter "s'' should be doubled like this "across''.
A、a, a
B、an, a
C、an, the
D、the, the
They enjoyed _____ piano. [     ]
A、play
B、playing
C、playing the
D、to play a
I could play            piano at the age of six. [     ]
A、a
B、the
C、/
D、an
— Do you know ______ man on TV? 
— Yes, he is ______ honest person. [     ]
A、a; an
B、an; the
C、the; an
D、a; the
________ sign here stands for ________ mistake[     ]
A、A…a
B、A…the
C、The…a
D、The…the
— Did you do well in ______ English test? 
— Yes, I got             "A". [     ]
A、the, an
B、an, the
C、a, /
D、the, a
The Yellow River is           river in China . [     ]
A、longest
B、the longest
C、the second longest
D、the longer
She is playing _____.
A、the piano
B、a piano
C、piano
D、an piano