牛津英语高一模块1有关定语从句的几个问题请教!
1 The reason _____ he was dismissed is not difficult to explian .
A that B for which C which D for that
2 The reason _____ she gave up teaching was her serious illness.
A for that B for which C which D why
3 The English subject ,___ i do well,is important in middle school.
A which B that C in which D at which
4 The English subject ,___ i have mastered well,is important in middle school.
A / B at which C that D in which