— Who's that man in our classroom? It ________ be Mr. Brown. He is much taller.— You mean the man in white? He is an exchange student from England.
A:can
B:may
C:can't
D:mustn't
看拼音,写词语。
jìng sài
kāi mù
miǎn fèi
huí móu
fú xiàn
____
读“木桶效应”图,回答下列各题。
人的生命的价值表现在人的存在和活动对自己的意义。( )