问题补充：
two exams to worry about, I have to work really hard this weekend.
A. With
B. Besides
C. As for
D. Because of
答案：
(答案→)A. With
B. Besides
C. As for
D. Because of
解析：考察with复合结构。With的复合结构：With+宾语+宾语补足语。B除…之外；C至于；D因为,because of后面不接复合结构。结合句意可知A正确。句意：很担心两次考试的情况，这个星期我不得不真正地认真了。
