给下列单词选择相应的中文翻译,只填序号。
( ) (1) American ( ) (2) practice ( ) (3) thirsty ( ) (4) toilet ( ) (5) exercise
Peking Man lived about 300,000 ________ 500,000 years ago. A.from B.toC.for
What's your mother's ________? A.work B.do C.job
What class are you ________? A.at B.in C.on
How old ________ your brother? A.is B.are C.does
Where ________ your father now? A.is B.are C.was