问题

The old lady’s hand shook frequently She explained to her doctor_______this shaking had begun half ayear before, any ____, only because of this, she had been forced to give up her job[ ]
A: when ; how
B: how ; when
C: how ; how
D: why ; why
B: how ; when
C: how ; how
D: why ; why
正确答案是:
同类题型
___________ he has limited technical knowledge, the old worker has a lot of experience
Every few years, the coal workerstheir lungs X-rayed to ensure their health
I haven’t seen Ann for ____ long that I’ve forgotten what she looks like[ ]
May I go outside and play for a while, Mum?—No, ___ your homework is done.[ ]