英语连词的用法?One can't learn a foreign language well _____ he studies hard.A.because B.though C.unless D.ifSara is the girl over there _____ wears a red skirt.A.whom B.which C.不填 D.whoWhat would you do,_____,if you had one billion dollar

英语连词的用法?One can't learn a foreign language well _____ he studies hard.A.because B.though C.unless D.ifSara is the girl over there _____ wears a red skirt.A.whom B.which C.不填 D.whoWhat would you do,_____,if you had one billion dollar 英语连词的用法oy8ou9op9uo 英语can的用法 can't stop 的用法 求：英语can,must,can't,must't 的用法大神们帮帮忙 急需英语连词的用法时间! 英语连词的作用及用法 英语中that当连词的用法 请教英语高手关于连词用法请问能不能两个连词同时使用造句：I can't blame for your absense; but now you are here,you'd better help me out.这里的but表示但是,now表示既然,都作连词,请问这个句子是否正确? must ,might ,could ,can't的用法? 情态动词can't的用法 I can't agree more的用法 can’t stand的用法gee can't have done 的用法 cannot和can't用法的区别 can't =cannot 的用法 mustn't neendn't can't 的用法 can't be用法