Tom made great progress last semester and as result, he was praised by the teacher.
A. a; a
B. a; /
C. /; /
D. /; a
网友回答
A. a; a
B. a; /
C. /; /
(答案→)D. /; a
解析：考查冠词。第一空后的名称progress是一个不可数名词，前面不能有a修饰；第二空是固定词组as a result结果；句意：Tom上个学期取得了巨大的进步，结果他被老师表扬了。故D正确。