David can speak idiomatic American English and yet, _____ English, he doesn't know it at all. 
#73915
A
how to teach
B
when it comes to teaching
C
when he teaches
D
however he teaches
推荐题目
---Do you know the danger caused by smoking?---Yes, too many cigarettes can lead to_______ lung cancer.
#69887
A
a person suffers from
B
a person to suffer from
C
a person being suffered from
D
a person suffering from
Which do you enjoy ____ your weekend, swimming or fishing?
#72222
A
spending
B
being spent
C
spend
D
to spend
This is ___ book ___ I wrote.
#73606
A
the only ….which
B
a very…that
C
the only…that
D
the just…which