【简答题】一般带小数点的数或用科学计数法表示的数都被认为是浮点数,它的数据类型默认为( )类型
【单选题】The boy’s parents, who let him play football indoors, rather than the boy ________ to blame for the broken window.
【单选题】-Who’s ______boy under the tree?-Bill. He’s ______ active boy.
【单选题】Who is the oldest child in the boy's family?
【简答题】听录音,排顺序。 ( ) Good afternoon. ( ) Let's watch TV. ( ) Who's that woman? ( ) Who's that boy? ( ) This is my sister. ( ) She's a girl.
【单选题】— _____ the boy _____ the second picture? — He's my cousin, Peter. [ ]