问题补充：
She started singing to the baby and was with a smile.
A. awarded
B. rewarded
C. prized
D. valued
答案：
A. awarded
(答案→)B. rewarded
C. prized
D. valued
解析：本题考查动词辨析。句意：她开始给孩子唱歌，孩子则报以微笑。be rewarded with a smile报之以微笑。reward sb. with sth.“用……回报某人”为固定搭配，此处为其被动形式。
