Look the birds. They are lovely.A. atB. upC. forD. on

问题补充：

Look the birds. They are lovely.

A. at

B. up

C. for

D. on

答案：

(答案→)A. at

B. up

C. for

D. on

解析：句意：看看这些鸟。他们好可爱。Look at看一看，Look up 查阅，Look for寻找，Look on旁观，根据句意可知，故选A