— 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
They use computers to keep the traffic _______ smoothly. 
#5026
A
being run
B
run
C
to run
D
running
It is believed that if a book is ______, it will surely ______ the reader.
#4930
A
interested; interest
B
interesting; be interested
C
interested; be interesting
D
interesting; interest