— Did you know any Chinese, Joyce, before you arrived in Beijing? — In fact, never _______ it.
#5016
A
have I learned
B
I have learned
C
had I learned
D
I had learned
推荐题目
—Do you think_____ worthwhile to go all the way to Los Angles to buy that computer?—Well ,I’m going to visit some relatives, too.
#4853
A
it
B
/
C
this
D
that
Signnatel Inc, ______ world's largest maker of controller chips for MP3 players, is set to establish _______ new R & D centre in Hong Kong and open two sales offices on China's mainland.
#59044
A
the; a
B
the; the
C
a; the
D
a; a
Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.
#4678
A
producing
B
having been produced
C
to be produced
D
produced
“Where are we now?”_____ few minutes one of the students asked me the same question.
#4840
A
A
B
Each
C
Another
D
Every