The workers are talking about the doctors and the offices ____ they visited yesterday.
#69725
A
which
B
who
C
that
D
where
推荐题目
It was funny that when _______ Mary began to weep sadly. 
#68175
A
praising
B
praised
C
to praise
D
having praised
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
Though the key was pressed, nothing ______ on the screen.
#41230
A
appeared
B
was appeared
C
appears
D
is appeared