英语问题,怎么判断?最好有分析,为什么选这个.我是初中生,对这些有点不太懂.thank you~1.It was there, the police believe, ________ she was able to activate the recorder she kept in her bag. A、until B、which C、that D、when2.It is not yet known ________ computers will one day have vision as good as human vision. A、whether B、if C、that D、how3.If you are now ________ ,you ought to pay more attention to your health. A、in the fifties B、in your fifties C、in fifties D、i

英语问题,怎么判断?
最好有分析,为什么选这个.我是初中生,对这些有点不太懂.thank you~
1.It was there, the police believe, ________ she was able to activate the recorder she kept in her bag.
A、until B、which C、that D、when
2.It is not yet known ________ computers will one day have vision as good as human vision.
A、whether B、if C、that D、how
3.If you are now ________ ,you ought to pay more attention to your health.
A、in the fifties B、in your fifties C、in fifties D、in your fifty
4.Americans have learned much about he way in which the system can be managed so as to ________ the peaceful transfer of power from one party to the other.
A、make it possible B、make possible C、make possibly D、make it possibly
5. ________ their differences, they fell passionately in love with each other.
A、As for B、Owing to C、Despite D、Through
6.不用说,我们现在已不是生活在传统社会.