1.when 2.if 3.before 4.before 5.when
6.because 7.because 8.wherever 9.where 10.If
11.so that 12.that 13.such that
二:
1-5 ADCAB 6-10 BDCCA
练习:DADC
1.when 2.if 3.before 4.before 5.when
6.because 7.because 8.wherever 9.where 10.If
11.so that 12.that 13.such that
二:
1-5 ADCAB 6-10 BDCCA
练习:DADC