单项选择题
21()
A.what B.that C.which D.it
填空题 Ⅰ Phonetics 在下列每组单词中,有一个单词的画线部分与其他单词的画线部分的读音不同,找出这个词()
单项选择题 Tom told his teacher that he had ______his English book at home.
单项选择题 The boy couldn't make himself ______because of his poor English.