在电子仪器中,为了减弱与电源相连的两条导线所产生的磁场,通常总是把它们扭在一起。
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Thisistheonlyoneofthestudents_____thetruth.
A. thatknows
B. thatknow
C. whoknows
D. whichknows
Doyouknowthegirl_____?
A. whomheoftentalkto
B. towhoheoftentalks
C. tothatheoftentalks
D. heoftentalksto
Therearenochildren_____ovetheirparents.
A. thatdonot
B. whodoesnot
C. that
D. who
I'moneoftheboys_____neverlateforschool.
A. thatis
B. whoare
C. whoam
D. whois