The old lady’s hand shook frequently. She explained to her doctor ________ this shaking had begun half a year before, and ________, only because of this, she had been forced to give up her job. 
#73998
A
when; how
B
how; when
C
how; how
D
why; why
推荐题目
_____by a greater demand for vegetables, farmers have built more green houses.
#68282
A
Driven
B
Being driven
C
to drive
D
Having driven
 _________ get such a book?
#70361
A
Where do you think can I
B
Do you think where can I
C
Where do you think I can
D
Do you think where I can
He asked me      with me.
#69891
A
what the matter is
B
what the matter was
C
what’s the matter
D
what was the matter