7. The fact troubles me so much（我至今也不能通过驾驶考试）.
A. which I have been unable to pass the driving test up to now
B. because I have been unable to pass the driving test up to now
C. why I have been unable to pass the driving test up to now
D. that I have been unable to pass the driving test up to now
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10. It matters little how a man dies, but what matters so much more is（他如何活着）.
A. how he lives
B. that he lives
C. why he lives
D. which he lives
6. The child is always lying, so none of us will believe（他所说的任何话）.
A. whatever he says
B. no matter what he says
C. how he says
D. which he says
8. See to（孩子们别感冒）.
A. it that the children don't catch cold
B. if that the children don't catch cold
C. what the children don't catch cold
D. that the children don't catch cold
铁盐、铝盐、钙盐等不宜以下哪种药合用:( )
A. 红霉素
B. 四环素
C. 氯霉素
D. 链霉素
E. 庆大霉素
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