一、单项填空
1．Babies are not born with ______ moral sense；they can’t tell ______ difference between right and wrong.
A．the；the B．a；a
C．a；the D．/；a
解析：考查冠词。moral sense意思“是非感”。第一个空处指“孩子不会生来就有是非感”，因此用不定冠词；第二个空处考查的是固定短语：tell the difference between...and...，因此C项符合。
答案：C
2．All the students in his class insisted that Jack ______ the cleverest and that he ______
