问题
选择题
.You look tired .______ working indoors you should be out for a walk.
A．Because of
B．Instead of
C．Thanks to
D．As for
答案
答案：A
题目分析：句意：由于在室内工作你看起来很累，你应该出去散步。A .Because of 由于…..后加名词 代词动名词 B. Instead of 代替而不是 C. Thanks to幸亏由于 D. As for 至于，由于。根据题意故选A