All the students are to watch the race.
A. excited ; excited B. exciting ; excited C. excited ; exciting
( ) This ______ my mother.
A.is B. are C. am
( ) My father has two ______.
A.brother B. brothers C. sister
( ) I have aunts ______ uncles.
and B. or C. both
() I don’t have brothers ____ sisters.
A.or B. and C. /
选择出不同类的单词，把序号写在题前括号内。
（）（1） A. fatherB. mother C. family D. grandmother
（）（2） A. twenty B. ten C. oldD. eighty
（）（3） A. youngB. old C. year D. tall
（）（4） A. brother B. sisterC. classD. father